Instruction/ maintenance manual of the product ME540A-ST Black Box
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Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500 ) FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746 Mailing address: Black Box Corporation , 1000 Park Drive, Lawrence, PA 15055-1018 Web site: www.
FEDERAL COMMUNICATIONS COMMISSION AND CANADIAN DEPARTMENT OF COMMUNICATIONS RADIO FREQUENCY INTERFERENCE STATEMENTS This digital apparatus does not exceed the Class A limits for radio noise emission from digital apparatus set out in the Radio Interference Regulation of the Canadian Department of Communications.
FOM LINE DRIVER—ST AN D S M 3 Contents Chapter Page.
FOM LINE DRIVER—ST AND S M 4 Protocol — Speed — Maximum Distance — Operation — No. of Drops Supported — Interface — Connectors — Indicators — User Controls — Link Budget — Fiber .
FOM LINE DRIVER—ST AN D S M 5 2.1 Ports 2.2 Speed and Distance Figure 2-1. The FOM Line Driver . CONNECTORS TX RX CONNECTORS TX RX DB-9 TERMINAL BLOCK W ALLMOUNT POWER SUPPL Y 2.
FOM LINE DRIVER—ST AND S M 6 3.1 Network Mode NOTE There is no collision detection. Figure 3-1. All units configured in network mode. TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX 3. Configurations Fiber Cabling 232/485/C.
FOM LINE DRIVER—ST AN D S M 7 3.2 Master/Slave Mode Figure 3-2. One unit configured as a master , all others as slaves. TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX A B A B A B A B TX RX TX RX TX.
FOM LINE DRIVER—ST AND S M 8 3.3 Point-to-Point Figure 3-3. P oint-to-point—Both units configured as masters. NOTE The same interface is not required on both sides.
FOM LINE DRIVER—ST AN D S M 9 4.1 Setup or S1, P osition 1—Mode Select S1, P osition 2—Master/Slave Select NOTE T o use the following switch positions appropriately, you should have a firm understanding of your network requirements. S1, P ositions 3 through 6—RS-485 Failsafe/Biased Line S1, P ositions 7 and 8—RS-485 T ermination 4.
FOM LINE DRIVER—ST AND S M 10 F iber optic Cable Connections Chapter 3, Configurations Section 4.2 Section 4.3 Section 4.4 4.2 RS-232 Set XW1. DB9 Pinouts DCE DTE 2—TX Data 2—RX Data 3—RX Data.
FOM LINE DRIVER—ST AN D S M 11 4.3 RS-485 Connect the wire to the terminal block. Set S5. Set W4, W5, and W6. F or 4-wire operation: F or 2-wire operation: Set S1.
FOM LINE DRIVER—ST AND S M 12 Biased, Failsafe Operation (S1, positions 3 through 6). NOTE To use S1 positions 3 through 6 appropriately , you should have a firm understanding of your network requirements. Figure 4-1. Biased/Failsafe Operation Switches (RS-485).
FOM LINE DRIVER—ST AN D S M 13 4.4 20-mA Current Loop (Point to Point) NOTE T o use the following switch positions appropriately, you should have a firm understanding of your network requirements. Connect the wire to the terminal block. Set S5. Set S2 and S3.
FOM LINE DRIVER—ST AND S M 14 Figure 5-1. Circuit board with RS-232 options. + + + + + - + + + + + + B - A + B - A Rx Tx 1 2 3 4 5. Quick Setup Guide RX A X W 1 B X W 1 A S1 W3 C B A W2 TX A RX B TX B RX A TX A RX B TX B Slave Master Network 20mA RS-485 RS-232 Loopback Switch KEY 0 = Open/Off 1 = Closed/On S1 Pos.
FOM LINE DRIVER—ST AN D S M 15 Figure 5-2. Circuit board with RS-485 options. + + + + + - + + + + + + B - A + B - A Rx Tx 1 2 3 4 RX A TX A TX B A S5 S1 W6 W5 W4 B B AC RX B Slave Master Network 20m.
FOM LINE DRIVER—ST AND S M 16 Figure 5-3. Circuit board with 20-mA current-loop options. + + + + + - + + + + + + B - A + B - A Rx Tx 1 2 3 4 RS-232 A S3 S2 S1 A B B A BC B A RX B RX A TX B TX A RX A.
FOM LINE DRIVER—ST AN D S M 17 6.1 Application Problems Do this befor e you call for technical support 6.2 Calling Your Supplier 6.3 Shipping and Packaging 6.
FOM LINE DRIVER—ST AND S M 18 Application Diagram forms are found on pages 19, 21, and 23. You may be asked to fax your diagram to the Technical Support department.
FOM LINE DRIVER—ST AN D S M 19 Local Node Remote Node XW2 XW2 XW1 XW1 W3 W3 W2 W2 S5 S5 W4 W4 W5 W5 W6 W6 S2 S2 S3 S3 S1: S1: NOTE 0 = Open or Off 1 = Closed or On NOTE 0 = Open or Off 1 = Closed or.
FOM LINE DRIVER—ST AND S M 20.
21 Local Node Remote Node XW2 XW2 XW1 XW1 W3 W3 W2 W2 S5 S5 W4 W4 W5 W5 W6 W6 S2 S2 S3 S3 S1: S1: NOTE 0 = Open or Off 1 = Closed or On NOTE 0 = Open or Off 1 = Closed or On 1 12 2 3 34 4 55 6 67 7 88.
FOM LINE DRIVER—ST AND S M 22.
23 Local Node Remote Node XW2 XW2 XW1 XW1 W3 W3 W2 W2 S5 S5 W4 W4 W5 W5 W6 W6 S2 S2 S3 S3 S1: S1: NOTE 0 = Open or Off 1 = Closed or On NOTE 0 = Open or Off 1 = Closed or On 1 12 2 3 34 4 55 6 67 7 88.
FOM LINE DRIVER—ST AND S M 24.
FOM LINE DRIVER—ST AN D S M 25.
1000 Park Drive • Lawrence, P A 15055-1018 • 724-746-5500 • Fax 724-746-0746 © Copyright 1998. Black Box Corporation. All rights reserv ed..
An important point after buying a device Black Box ME540A-ST (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Black Box ME540A-ST 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 Black Box ME540A-ST - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Black Box ME540A-ST you will learn all the available features of the product, as well as information on its operation. The information that you get Black Box ME540A-ST will certainly help you make a decision on the purchase.
If you already are a holder of Black Box ME540A-ST, 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 Black Box ME540A-ST.
However, one of the most important roles played by the user manual is to help in solving problems with Black Box ME540A-ST. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Black Box ME540A-ST 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
