Instruction/ maintenance manual of the product 7975 Paradyne
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HOTWIRE 7975 M/SDSL ST ANDALONE TERMINA TION UNIT USER’S GUIDE Document No. 7975-A2-GB20-40 December 1998.
Printed on recycled paper A 7975-A2-GB20-40 December 1998 Copyright E 1998 Paradyne Corporation. All rights reserved. Printed in U.S.A. Notice This publication is protected by federal copyright law .
Important Information B 7975-A2-GB20-40 December 1998 Important Safety Instructions 1. Read and follow all warning notices and instructions marked on the product or included in the manual.
Important Information C 7975-A2-GB20-40 December 1998 EMI W arnings ! W ARNING: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC rules.
i 7975-A2-GB20-40 December 1998 Contents About This Guide H Document Purpose and Intended Audience v . . . . . . . . . . . . . . . . . . . . . . . . . H Document Summary v . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contents ii 7975-A2-GB20-40 December 1998 3 Initial Startup and Configuration H Overview 3-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . H Connecting Power to the Unit 3-2 . . . . . . . .
Contents iii 7975-A2-GB20-40 December 1998 5 T esting H Accessing the T est Menu 5-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . H Running Network T ests 5-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contents iv 7975-A2-GB20-40 December 1998 A Configuration Option T ables H Overview A-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . H Network Interface Options Menu A-2 . . . . . . . . . .
v 7975-A2-GB20-40 December 1998 About This Guide Document Purpose and Intended Audience This guide contains information needed to set up, configure, and operate the Hotwire 7975 Multirate/Symmetric Digital Subscriber Line (M/SDSL) Standalone T ermination Unit and is intended for installers and operators.
About This Guide vi 7975-A2-GB20-40 December 1998 Section Description Appendix A Configuration Option T ables. Contains all configuration options, default settings, and possible settings. Appendix B Standards Compliance for SNMP T raps. Contains SNMP trap compliance information.
1-1 7975-A2-GB20-40 December 1998 About the Hotwir e 7975 Standalone T ermination Unit 1 M/SDSL Overview Hotwire Multirate/Symmetrical Digital Subscriber Line (M/SDSL) products maximize customer service areas by varying the DSL line rate.
About the Hotwire 7975 Standalone T ermination Unit 1-2 7975-A2-GB20-40 December 1998 Hotwir e 7975 Features The Hotwire 7975 M/SDSL Standalone T ermination Unit is an endpoint for the chassis-mounted Hotwire 8775 M/SDSL T ermination Unit housed in the Hotwire 8600 or 8800 Digital Subscriber Line Access Multiplexer (DSLAM).
About the Hotwire 7975 Standalone T ermination Unit 1-3 7975-A2-GB20-40 December 1998 Network Configuration Figure 1-1 shows a network application using a 4-port Hotwire 8775 M/SDSL T ermination Unit for access concentration in a central office (CO).
About the Hotwire 7975 Standalone T ermination Unit 1-4 7975-A2-GB20-40 December 1998 Fr ont Panel LED Status Indicators Figure 1-2 shows the front panel of the 7975 Standalone T ermination Unit. For more information on front panel LEDs, refer to Chapter 4, Monitoring the Unit .
About the Hotwire 7975 Standalone T ermination Unit 1-5 7975-A2-GB20-40 December 1998 SNMP Management Capabilities The termination unit supports SNMP V ersion 1, and can be managed by any industry-standard SNMP manager and accessed using SNMP by external SNMP managers.
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2-1 7975-A2-GB20-40 December 1998 Using the Asynchr onous T erminal Interface 2 User Interface Access Y ou can communicate with the Hotwire 7975 Standalone T ermination Unit with an asynchronous terminal interface (A TI) using one of the following methods: H Direct connection through the COM port.
Using the Asynchronous T erminal Interface 2-2 7975-A2-GB20-40 December 1998 Initiating an A TI Session The Main Menu screen is displayed on the screen unless a login ID and password is required or the A TI is already in use.
Using the Asynchronous T erminal Interface 2-3 7975-A2-GB20-40 December 1998 main Access Level: Administrator Hotwire Model 7975 MAIN MENU Status Test Configuration Control –––––––––.
Using the Asynchronous T erminal Interface 2-4 7975-A2-GB20-40 December 1998 The following illustration shows the paths to the different A TI screens. Main Status T est System and T est Status Perf or.
Using the Asynchronous T erminal Interface 2-5 7975-A2-GB20-40 December 1998 Scr een W ork Areas There are two user work areas: H Screen area – This is the area above the dotted line that provides the menu path, menus, and input fields. The menu path appears as the first line on the screen.
Using the Asynchronous T erminal Interface 2-6 7975-A2-GB20-40 December 1998 Navigating the Scr eens Y ou can navigate the screens by: H Using keyboard keys H Using screen function keys H Switching between the two screen work areas Keyboard Keys Use the following keyboard keys to navigate within the screen.
Using the Asynchronous T erminal Interface 2-7 7975-A2-GB20-40 December 1998 The current setting or value appears to the right of the field name. Y ou can enter information into a selected field by: H T yping in the first letter(s) of a field value or command.
Using the Asynchronous T erminal Interface 2-8 7975-A2-GB20-40 December 1998 Switching Between Screen W ork Areas Select Ctrl-a to switch between the two screen work areas to perform all screen functions. " Procedur e T o access the screen function area below the dotted line: 1.
Using the Asynchronous T erminal Interface 2-9 7975-A2-GB20-40 December 1998 Ending an A TI Session Use the E xit function key from any screen to terminate the session. " Procedur e T o end a session with the asynchronous terminal interface: 1. Press Ctrl-a to go to the screen function key area below the dotted line.
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3-1 7975-A2-GB20-40 December 1998 Initial Startup and Configuration 3 Overview This chapter provides instructions on how to access and configure your unit for the first time. This chapter includes procedures for: H Connecting power to the unit. H Connecting the unit to the network.
Initial Startup and Configuration 3-2 7975-A2-GB20-40 December 1998 Connecting Power to the Unit If your package includes a power pack: Plug the power pack into an ac outlet having a nominal voltage rating between 100–240 V ac. Connect the output cable of the power pack to the connector marked POWER on the rear panel.
Initial Startup and Configuration 3-3 7975-A2-GB20-40 December 1998 Connecting to the Network " Procedur e T o connect your unit to the network: 1. Connect one end of the network cable into the rear panel DSL jack. Connect the other end to your DSL network interface.
Initial Startup and Configuration 3-4 7975-A2-GB20-40 December 1998 Entering Identity Information After accessing your unit for the first time, use the Change Identity screen to determine SNMP administrative system information that will be displayed on the Identity screen of the Status branch.
Initial Startup and Configuration 3-5 7975-A2-GB20-40 December 1998 " Procedur e T o enter Change Identity screen information: 1. Position the cursor in the System Name field. Enter a name unique in your network to identify the SNMP managed node (or unit).
Initial Startup and Configuration 3-6 7975-A2-GB20-40 December 1998 Configuring the Unit Using the Internal Switches Use internal Switchpacks S1 and S2 to manually configure the unit.
Initial Startup and Configuration 3-7 7975-A2-GB20-40 December 1998 Switchpack Locations Use Figure 3-1 to locate Switchpacks S1 and S2. 98-15937 Switchpac k S1 & S2 F ront S2 Rear S1 678 ON 12345 678 ON 12345 Figure 3-1.
Initial Startup and Configuration 3-8 7975-A2-GB20-40 December 1998 Switchpack Definitions Manually change configuration options by moving Switchpack S1 DIP switches on the card. T able 3-1 lists Switchpack S1 definitions. T able 3-1. Switchpack S1 Definitions Switch # .
Initial Startup and Configuration 3-9 7975-A2-GB20-40 December 1998 T able 3-2. Selectable Payload Rates (Switches 4–8 on Switchpack S1) Switch Number Associated DSL L i ne Sync Port Payload Rate 8 .
Initial Startup and Configuration 3-10 7975-A2-GB20-40 December 1998 T able 3-3 lists Switchpack S2 definitions. T able 3-3. Switchpack S2 Definitions Switch # . . . Allows you to . . . Default in Bold 1 Control whether the unit is an L TU or an NTU. OFF = NTU ON = L TU 2 Control enabling and disabling of the AutoRate capability .
Initial Startup and Configuration 3-1 1 7975-A2-GB20-40 December 1998 Accessing and Displaying Configuration Options T o display configuration options, you must first load a configuration into the edit area.
Initial Startup and Configuration 3-12 7975-A2-GB20-40 December 1998 Configuration Edit/Display The Configuration Edit/Display screen is displayed when the current, customer , or default configuration is loaded.
Initial Startup and Configuration 3-13 7975-A2-GB20-40 December 1998 Configuring AutoRate The M/SDSL AutoRate function is controlled from the Network Interface Options screen and allows you to enable or disable AutoRate from a unit configured as an L TU.
Initial Startup and Configuration 3-14 7975-A2-GB20-40 December 1998 T able 3-5. Fixed Rate Payload Rates and DSL Line Rates DSL Line Rate (kbps) 2 Mbps units 144 272 400 528 784 1040 1552 2064 P 64 1.
Initial Startup and Configuration 3-15 7975-A2-GB20-40 December 1998 " Procedur e T o upload or download a configuration: 1. Position the cursor in the Image File Name field. T ype the name of the file to be downloaded, or the name to be used for the file to be uploaded.
Initial Startup and Configuration 3-16 7975-A2-GB20-40 December 1998 Saving Configuration Options When changes are made to the configuration options through the Configuration Edit/Display branch, the changes must be saved to take effect. Use the S ave key or Save Configuration screen.
Initial Startup and Configuration 3-17 7975-A2-GB20-40 December 1998 Download Code The Download Code screen allows you to download firmware from a TFTP server .
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4-1 7975-A2-GB20-40 December 1998 Monitoring the Unit 4 What to Monitor This chapter presents information on how to access and monitor Hotwire 7975 Standalone T ermination Units on the E1 network.
Monitoring the Unit 4-2 7975-A2-GB20-40 December 1998 V iewing System and T est Status T o view System and T est Status information, follow this menu selection sequence: Main Menu → Status → Syste.
Monitoring the Unit 4-3 7975-A2-GB20-40 December 1998 Health and Status The following messages can appear in the first column of the System and T est Status screen. The highest priority Health and Status message also appears on all A TI screens on the bottom right.
Monitoring the Unit 4-4 7975-A2-GB20-40 December 1998 T able 4-1. Health and Status Messages Message What T o Do What Message Indicates Net Com Link Down The Network communication link is down. Communications between the management system and the L TU/NTU is not possible.
Monitoring the Unit 4-5 7975-A2-GB20-40 December 1998 T est Status The T est Status messages in the following table appear in the right column of the System and T est Status screen. T able 4-3. T est Status Messages T est Status Message Meaning No T est Active No tests are currently running.
Monitoring the Unit 4-6 7975-A2-GB20-40 December 1998 V iewing Network Err or Statistics The 7975 Standalone T ermination Unit maintains error statistics on the network DSL interface for port 1. Statistics are maintained for up to 96 15-minute intervals (24 hours).
Monitoring the Unit 4-7 7975-A2-GB20-40 December 1998 Use the virtual function keys to page through the intervals and clear statistics. This Field . . . Contains . . . Current Interval T imer The number of seconds which have elapsed in the current 15-minute interval.
Monitoring the Unit 4-8 7975-A2-GB20-40 December 1998 V iewing Network Performance Statistics Network performance statistics allow you to monitor the current status of the network DSL operations.
Monitoring the Unit 4-9 7975-A2-GB20-40 December 1998 This Field . . . Contains . . . Current Interval T imer The number of seconds which have elapsed in the current 15-minute interval. Maximum value is 900 seconds (15 minutes). This counter resets every 15 minutes.
Monitoring the Unit 4-10 7975-A2-GB20-40 December 1998 7975 Standalone T ermination Unit LEDs The following table contains a description of the LEDs on the 7975 Standalone T ermination Unit front panel. POWER ALARM TEST DSL DTE 98-15856 7975 M/SDSL TM TM T ype LED LED is .
5-1 7975-A2-GB20-40 December 1998 T esting 5 Accessing the T est Menu From the T est menu, you can run network tests, data port tests, and a lamp test for the front panel LEDs.
T esting 5-2 7975-A2-GB20-40 December 1998 Running Network T ests Network tests require the participation of your network service provider . T o access the Network T ests screen, follow this menu sele.
T esting 5-3 7975-A2-GB20-40 December 1998 Line Loopback Line Loopback (LLB) loops the received signal on the network interface back to the network without change. 98-15931 NTU/L TU Network Interf ace All 1s Po r t Interf ace F ramer EIA-530 Po r t CAP " Procedur e T o run a Line Loopback: 1.
T esting 5-4 7975-A2-GB20-40 December 1998 Repeater Loopback Repeater Loopback (RLB) loops the signal being sent from the data port back to the data port and to the network interface. 98-15932 NTU/L TU Network Interf ace Po r t Interf ace F ramer EIA-530 Po r t CAP " Procedur e T o run a Repeater Loopback: 1.
T esting 5-5 7975-A2-GB20-40 December 1998 Send Remote Line Loopback The L TU initiates the test by sending a line loopback up or down command to the remote unit for 10 seconds. When the remote unit detects the loopback up command, it puts itself in line loopback and lights the front panel test LED.
T esting 5-6 7975-A2-GB20-40 December 1998 Send and Monitor 51 1 The L TU initiates the test by lighting the T est LED sending a command to the remote unit to send a 51 1 test pattern. When the remote unit detects the command, it sends a 51 1 pattern and lights the front panel test LED.
T esting 5-7 7975-A2-GB20-40 December 1998 Running SYNC Data Port T ests T o access the SYNC Data Port T ests screen, follow this menu selection sequence: Main Menu → T est → SYNC Data Port T ests.
T esting 5-8 7975-A2-GB20-40 December 1998 Data T erminal Loopback Data T erminal Loopback (DTLB) loops the user data back to the DTE. This loopback is located as closely as possible to the user data port (DTE) interface.
T esting 5-9 7975-A2-GB20-40 December 1998 Data Channel Loopback Data Channel Loopback (DCLB) loops the data from the network interface back to the network.
T esting 5-10 7975-A2-GB20-40 December 1998 Send Remote Data Channel Loopback The local termination unit can send an Up or Down sequence to request the start or stop of a Data Channel Loopback (DCLB) on a remote unit.
T esting 5-1 1 7975-A2-GB20-40 December 1998 Device T ests The Device T ests branch is used to access the only card-level test, the Lamp T est. T o access the Device T ests screen, follow this menu se.
T esting 5-12 7975-A2-GB20-40 December 1998 Ending an Active T est Except for the Remote Send Line Loopback and Remote DCLB, a test initiated by the user can be ended by the user . T ests can also be terminated automatically by enabling the T est T imeout option from the System Options Menu.
6-1 7975-A2-GB20-40 December 1998 Messages and T r oubleshooting 6 Overview There are many messages available to assess the status of the device and contribute to problem resolutions.
Messages and T roubleshooting 6-2 7975-A2-GB20-40 December 1998 Configuring SNMP T raps An SNMP trap can be automatically sent out through the EOC or the Management port to an SNMP manager when the 7975 Standalone T ermination Unit detects conditions set by the user .
Messages and T roubleshooting 6-3 7975-A2-GB20-40 December 1998 Device Messages The Device Messages in T able 6-1, listed in alphabetical order , can appear in the messages area at the bottom of the A TI screens. T able 6-1. Device Messages (1 of 2) Device Message What Message Indicates What T o Do Access level is Operator .
Messages and T roubleshooting 6-4 7975-A2-GB20-40 December 1998 T able 6-1. Device Messages (2 of 2) Device Message What T o Do What Message Indicates Invalid entry at cursor (1...223, excluding 127) Invalid range. Enter a value within the IP address range.
Messages and T roubleshooting 6-5 7975-A2-GB20-40 December 1998 T r oubleshooting This 7975 Standalone T ermination Unit is designed to provide you with many years of trouble-free service. If a problem occurs, however , refer to T able 6-2 for possible solutions.
Messages and T roubleshooting 6-6 7975-A2-GB20-40 December 1998 T able 6-2. T roubleshooting (2 of 2) Symptom Solutions Possible Cause Not receiving data. H The network or data port cables are not connected (check front panel LEDs for more information).
7-1 7975-A2-GB20-40 December 1998 Security 7 Overview The 7975 Standalone T ermination Unit provides several methods of security by limiting user access to the A TI through option settings. Y ou can: H Enable the T elnet Login Required option. H Limit the access by setting a Session Access Level option of Operator for the T elnet Session.
Security 7-2 7975-A2-GB20-40 December 1998 Access level is also used to control access via T elnet. If the T elnet Session Access Level is set to Administrator (see T able A-5, T elnet Session Options ), a Login ID with an Operator access level is not permitted access.
Security 7-3 7975-A2-GB20-40 December 1998 3. Create the login by entering the following fields. Login IDs and passwords are case-sensitive. On the Login Entry screen, for the . . . Enter . . . Login ID 1 to 10 ASCII printable characters (hex21 through 7E).
Security 7-4 7975-A2-GB20-40 December 1998 Deleting a Login " Procedur e 1. T o delete a login record, follow this menu selection sequence: Main Menu → Control → Administer Logins 2. Select PgU p or PgDn and press Enter to page through login pages / records until you find the one to be deleted.
Security 7-5 7975-A2-GB20-40 December 1998 Limiting SNMP Access through the IP Addr esses of the Managers The unit provides an additional level of security through validation of the IP addresses.
Security 7-6 7975-A2-GB20-40 December 1998 If entering yes to prompt . . . Then . . . Reset COM Port usage H Port type is set to T erminal H Data Rate (kbps) is set to 9.
8-1 7975-A2-GB20-40 December 1998 IP Addr essing 8 Selecting an IP Addr essing Scheme The NTU’s network interface IP address is assigned through the peer IP address of the L TU’s Network Interface menu. The NTU obtains the L TU’s IP address and subnet mask when the PPP link is established over the EOC.
IP Addressing 8-2 7975-A2-GB20-40 December 1998 IP Addr essing Example 98-15901 DSLAM DSLAM 7975 7975 7975 MCC Base Address = 126.35.50.1 MCC Base Subnet Mask = 255.255.255.0 Po r t 1 P eer IP Address = 126.35.50.5 MCC LT U 8775 Po r t 2 P eer IP Address = 126.
A-1 7975-A2-GB20-40 December 1998 Configuration Option T ables A Overview The tables in this appendix summarize the configuration options accessed when you select the Configuration option on the Main Menu. The Configuration options are arranged into groups based upon functionality .
Configuration Option T ables A-2 7975-A2-GB20-40 December 1998 Network Interface Options Menu For Network Interface Options, refer to T able A-1. T o access the Network Interface Options screen, follow this menu selection sequence: Main Menu → Configuration → Current Configuration → Network T able A-1.
Configuration Option T ables A-3 7975-A2-GB20-40 December 1998 T able A-1. Network Interface Options (2 of 2) DSL Line Rate Possible Settings: 144, 272, 400, 528, 784, 1040, 1552 (2 Mbps unit only), 2064 (2 Mbps unit only) Default Setting: 144 Specifies the DSL line rate of the unit.
Configuration Option T ables A-4 7975-A2-GB20-40 December 1998 Synchr onous Data Port Options Menu For Synchronous Data Port Options, refer to T able A-2. T o access the Synchronous Data Port Options screen, follow this menu selection sequence: Main Menu → Configuration → Load Configuration From → SYNC Ports T able A-2.
Configuration Option T ables A-5 7975-A2-GB20-40 December 1998 T able A-2. Synchronous Data Port Options (2 of 3) Invert T ransmit Clock Possible Settings: Disable, Enable Default Setting: Disable Spe.
Configuration Option T ables A-6 7975-A2-GB20-40 December 1998 T able A-2. Synchronous Data Port Options (3 of 3) Port (DTE) Initiated Loopbacks Possible Settings: Disable, DTLB, DCLB, Both Default Se.
Configuration Option T ables A-7 7975-A2-GB20-40 December 1998 System Options Menu For System Options, refer to T able A-3. T o access the System Options screen, follow this menu selection sequence: Main Menu → Configuration → Load Configuration From → System T able A-3.
Configuration Option T ables A-8 7975-A2-GB20-40 December 1998 Communication Port For Communication Port Options, refer to T able A-4. T o access the Communication Port screen, follow this menu selection sequence: Main Menu → Configuration → Load Configuration From → Communication Port T able A-4.
Configuration Option T ables A-9 7975-A2-GB20-40 December 1998 T able A-4. Communication Port (2 of 3) Stop Bits Possible Settings: 1, 1.5, 2 Default Setting: 1 Specifies the number of stop bits for the communication port. 1 – One stop bit. 1.5 – One and one half stop bits .
Configuration Option T ables A-10 7975-A2-GB20-40 December 1998 T able A-4. Communication Port (3 of 3) Disconnect Time (Minutes) Possible Settings: 1 – 60 Default Setting: 5 Number of minutes of inactivity before the session terminates automatically .
Configuration Option T ables A-1 1 7975-A2-GB20-40 December 1998 Management and Communication Options Menu The Management and Communication Options Menu includes the following: H T elnet Sessions Opti.
Configuration Option T ables A-12 7975-A2-GB20-40 December 1998 T able A-5. T elnet Sessions Options (2 of 2) Session Access Level Possible Settings: Administrator , Operator Default Setting: Administrator The T elnet session access level is interrelated with the access level of the Login ID.
Configuration Option T ables A-13 7975-A2-GB20-40 December 1998 T able A-6. Communication Protocol Options (2 of 2) Node Subnet Mask Possible Settings: 000.000.000.000 – 255.255.255.255 Default Setting: 000.000.000.000 Specifies the Node Subnet Mask.
Configuration Option T ables A-14 7975-A2-GB20-40 December 1998 SNMP T raps Options T o access the SNMP T raps Options screen, follow this menu selection sequence: Main Menu → Configuration → Load Configuration From → Edit → Management and Communication → SNMP T raps T able A-7.
Configuration Option T ables A-15 7975-A2-GB20-40 December 1998 T able A-7. SNMP T raps Options (2 of 2) Enterprise Specific T raps Possible Settings: Enable, Disable Default Setting: Disable Determines if SNMP traps are generated for enterprise-specific events.
Configuration Option T ables A-16 7975-A2-GB20-40 December 1998 General SNMP Management Options SNMP configuration options allow you to specify the information necessary to support the T ermination Unit General SNMP functionality .
Configuration Option T ables A-17 7975-A2-GB20-40 December 1998 SNMP NMS Security Options SNMP configuration options allow you to specify the information necessary to support the T ermination Unit SNMP NMS Security .
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B-1 7975-A2-GB20-40 December 1998 Standards Compliance for SNMP T raps B SNMP T raps This section describes the unit’s compliance with SNMP standards and any special operational features for the SNMP traps supported.
Standards Compliance for SNMP T raps B-2 7975-A2-GB20-40 December 1998 linkUp and linkDown The link SNMP traps are: H linkUp – The unit recognizes that one of the communication interfaces is operational. H linkDown – The unit recognizes that one of the communication interfaces is not operational.
Standards Compliance for SNMP T raps B-3 7975-A2-GB20-40 December 1998 Enterprise-Specific T raps The enterpriseSpecific trap indicates that an enterprise-specific event has occurred. The Specific-trap field identifies the particular trap that occurred.
Standards Compliance for SNMP T raps B-4 7975-A2-GB20-40 December 1998 The tests that affect the enterpriseT estStart, enterpriseT estStop, and the variable-bindings are different for each particular interface. Diagnostic tests are only supported on the physical E1 network and user data port interfaces.
C-1 7975-A2-GB20-40 December 1998 Cables and Pin Assignments C Overview The following sections provide pin assignments: H DSL Network Interface Cable H COM Port Interface Cable H EIA-530A Port Interface Connector H EIA-530A to X.21 Interface Cable H EIA-530A to RS 449 Interface Cable H EIA-530A to V .
Cables and Pin Assignments C-2 7975-A2-GB20-40 December 1998 DSL Network Interface Cable The DSL line interface cable is a 20-foot, 24 A WG solid, 2-twisted-pair cable that is RJ48C-to-RJ48C (Figure C-1).
Cables and Pin Assignments C-3 7975-A2-GB20-40 December 1998 COM Port Interface Cable The COM port connects to either a PC or to an ASCII terminal or printer for alarms. The COM port-to-PC cable is a 14-foot, 26 A WG, 8-conductor cable with an 8-position modular plug keyed connector and a DB9 socket connector (Figure C-2).
Cables and Pin Assignments C-4 7975-A2-GB20-40 December 1998 T able C-2. COM Port Connector (J6) Signal Direction Pin Number Reserved for future use to DTE (Out) 1 DCE Received Data to DTE (Out) 2 Sig.
Cables and Pin Assignments C-5 7975-A2-GB20-40 December 1998 EIA-530A Port Interface Connector The EIA-530A Port interface connector information is shown in T able C-3.
Cables and Pin Assignments C-6 7975-A2-GB20-40 December 1998 EIA-530A-to-X.21 Interface Cable The EIA-530A-to-X.21 adapter cable (Figure C-3) provides the X.21 interface shown in T able C-3. 98-15883 2 14 3 16 17 9 4 19 8 10 7 24 11 2 9 4 11 6 13 3 10 5 12 8 7 14 TD-A TD-B RD-A RD-B RXC-A RXC-B RTS-A RTS-B RLSD-A RLSD-B SIG.
Cables and Pin Assignments C-7 7975-A2-GB20-40 December 1998 T able C-3. X.21 Cable Interface Signal CCITT Number Direction Pin Signal Common 102 — 8 T ransmitted Data 103 T o DSU/CSU 2 (A) 9 (B) Re.
Cables and Pin Assignments C-8 7975-A2-GB20-40 December 1998 EIA-530A-to-RS449 Cable Interface The EIA-530A-to-RS449 adapter cable (Figure C-4) provides the RS449 interface shown in T able C-4.
Cables and Pin Assignments C-9 7975-A2-GB20-40 December 1998 T able C-4. RS449 Cable Interface Signal Circuit Mnemonic CCITT Number Direction Pin Shield — — — 1 Signal Ground SG 102A — 19 Rece.
Cables and Pin Assignments C-10 7975-A2-GB20-40 December 1998 EIA-530A-to-V .35 Cable Interface The EIA-530A-to-V .35 adapter cable ( Figure C-5 ) provides the V .
Cables and Pin Assignments C-1 1 7975-A2-GB20-40 December 1998 T able C-5. V .35 Cable Interface Signal CCITT Number Direction Pin Shield — — A Signal Common 102 — B T ransmitted Data 103 T o DS.
Cables and Pin Assignments C-12 7975-A2-GB20-40 December 1998 Power Input Connector The required input power connector leads are shown in T able C-6. T able C-6. DC Power Connector Signal Pin Number +24 Vdc 5 +24 Vdc Return 4 Chassis Ground 3 Optional Power Cable The optional power cable is a 14.
D-1 7975-A2-GB20-40 December 1998 T echnical Specifications D Specifications Criteria* Size Width 7.25 inches (18.4 cm) Height 1.5 inches (3.8 cm) Length 9.4 inch (24.9 cm) Weight Approximately 1.25 lbs. (0.6 kg) Approvals Safety Certifications Refer to the equipment’s label for approvals on product.
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GL-1 7975-A2-GB20-40 December 1998 Glossary Alternate Mark Inversion. A line coding technique used to accommodate the ones density requirements of E1 or T1 lines. Asynchronous T erminal Interface. A menu-driven, VT100-compatible system for configuring and managing the termination unit.
Glossary GL-2 7975-A2-GB20-40 December 1998 Data T erminal Ready . A signal from the DTE to the modem, sent via Pin 20 of the EIA-232 interface (V .24 circuit 108/1, /2), that indicates the DTE is turned ON and connected to the modem. Excessive Error Rate.
Glossary GL-3 7975-A2-GB20-40 December 1998 Light Emitting Diode. A light or status indicator that glows in response to the presence of a certain condition (e.g., an alarm). Line Loopback. A test in which the received signal on the network interface is looped back to the network without change.
Glossary GL-4 7975-A2-GB20-40 December 1998 Virtual terminal protocol in the Internet suite of protocols. Allows the user of one host computer to log into a remote host computer and interact as a normal terminal user for that host. T rivial File Transfer application.
IN-1 7975-A2-GB20-40 December 1998 Index A Abort All T ests, 5-1 ac transformer , connecting, 3-2 access SNMP , 1-3, 7-4 to async terminal interface, 2-3 access level effective, 7-1 functions availabl.
Index IN-2 7975-A2-GB20-40 December 1998 D data channel loopback (DCLB), 5-9, A-6 data port loopbacks, DTE initiated, A-6 data port tests, 5-7 data terminal loopback (DTLB), 5-8, A-6 dc power option, .
Index IN-3 7975-A2-GB20-40 December 1998 M main menu, 2-2, A-1 Management and Communication Options, A-1 1 management port access, 7-1 settings, 2-1 Margin Threshold, A-2 Memory Fail, status, 4-4 mess.
Index IN-4 7975-A2-GB20-40 December 1998 SNMP Management Configuration, A-16 SNMP management general, 1-5 limiting access, 7-4 SNMP NMS Security Options, A-16, A-17 SNMP T rap Options, NMS n IP Addres.
An important point after buying a device Paradyne 7975 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Paradyne 7975 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Paradyne 7975 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Paradyne 7975 you will learn all the available features of the product, as well as information on its operation. The information that you get Paradyne 7975 will certainly help you make a decision on the purchase.
If you already are a holder of Paradyne 7975, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Paradyne 7975.
However, one of the most important roles played by the user manual is to help in solving problems with Paradyne 7975. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Paradyne 7975 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
