Instruction/ maintenance manual of the product C541M-C Pelco
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® Pelco World Headquarters • 3500 Pelco Way, Clovis, California 93612-5699 USA • www.pelco.com USA & Canada: Tel: 800/289-9100 • Fax: 800/289-9150 International: Tel: 1-559/292-1981 • Fax: 1-559/348-1120 ADDENDUM Addendum No.
CM9760-REL System 9760 ® Relay Interface Unit Installation/ Operation Manual C538M-A (3/04) ® Pelco W orld Headquar ters • 3500 P elco W a y , Clovis, CA 93612-5699 USA • www .
2 Pelco Manual C538M-A (3/04) CONTENTS Section Page 1.0 GENERAL ................................................................................................... 3 1.1 IMPOR T ANT SAFEGU ARDS AND W ARNINGS ................................ 3 2.0 DESCRIPTION .
Pelco Manual C538M-A (3/04) 3 Please thoroughly familiarize yourself with the information in this manual prior to installation and operation. 1.0 GENERAL 1.1 IMPORT ANT SAFEGUARDS AND W ARNINGS Prior to installation and use of this product, the following W ARNINGS should be obser v ed.
4 Pelco Manual C538M-A (3/04) 2.0 DESCRIPTION The CM9760-REL Rela y Interface Unit is an optional accessory of the System 9760 ® . The relay interf ace unit provides dry contact switching for direct or automatic con- trol of peripheral equipment. The unit connects to any RS-422 COMM port on the rear of the CM9760-CC1.
Pelco Manual C538M-A (3/04) 5 3.0 PRE-INST ALLA TION INFORMA TION 3.1 FRONT VIEW AND DIP SWITCH ACCESS Figure 1 illustrates a front vie w of the unit with its front panel removed. P ower (green) and Data (red) LEDs occupy opposite ends of the unit’ s front panel.
6 Pelco Manual C538M-A (3/04) 3.2 REAR VIEW The rear of the unit is illustrated in Figure 2. F rom left to r ight are the f ollowing: 1. F our b locks consisting of 16 contact pairs, each with mating plugs f or the at- tachment of peripheral equipment.
Pelco Manual C538M-A (3/04) 7 3.2.1 REL Contact Pair Connections Physically , each rela y bloc k consists of 16 rela y contacts and two mating plugs. Since a relay contact requires tw o terminal positions, each plug provides 8 contacts via 16 screw terminals.
8 Pelco Manual C538M-A (3/04) 3.2.2 External Relay Wiring Considerations Components of external rela y wiring are illustrated in Figure 4. 3.2.3 Communication Connectors Communication to and from the unit is provided through two RJ-45 ports on the rear of the CM9760-REL.
Pelco Manual C538M-A (3/04) 9 3.2.3.2 RJ-45 Data Cables Because both RJ-45 connectors hav e the same wir ing pin-outs , they require the same “flipped” cable .
10 Pelco Manual C538M-A (3/04) 3.2.4 Power Connections The CM9760-REL utilizes an auto-ranging internal transf ormer circuit that allows input power to range from 100-240 V A C , 50/60Hz. Associated with the input po wer is the power ON/OFF s witch and the input power fuse.
Pelco Manual C538M-A (3/04) 11 3.3 SETUP 3.3.1 Preliminary Discussion FRAME ADDRESSES The IRC, VCRC , and the CM9760-REL Rela y Interface Unit, all use software GPIs to activate control of e xter nal de vices. The number of GPIs required by each hardw are device v aries.
12 Pelco Manual C538M-A (3/04) When setting frame addresses on the front panel s witches for a group of daisy- chained REL units, k eep in mind a few working rules: WORKING RULES 1. Star t with frame address 0, which is associated with ph ysical GPI 1, and w ork sequentially forw ard until all relay interf ace units are accounted for .
Pelco Manual C538M-A (3/04) 13 3.3.2 DIP Switch Settings DIP switch settings are illustr ated and discussed in Figure 10. Figure 10. DIP Switch Functions.
14 Pelco Manual C538M-A (3/04) Ta b le A. Fr ame Address, GPI Range Association (Continued on ne xt page) Daisy-Chained Frame Sub-Frame Combined Associated GPI Range Relay Units Addresses Addresses Fr.
Pelco Manual C538M-A (3/04) 15 Ta b le A. Fr ame Address, GPI Range Association (Contin ued) 45 11 0100 0 0 1 1 0 353 354 355 356 357 358 359 360 46 11 0100 1 0 1 1 1 361 362 363 364 365 366 367 368 4.
16 Pelco Manual C538M-A (3/04) Figure 11. Configur ing the GPI Define File f or REL Operation Figure 12. Configur ing the COMMS File f or REL Operation 3.
Pelco Manual C538M-A (3/04) 17 4.0 INST ALLA TION Physical installation of the REL unit is relativ ely simple, although v arious configura- tions are possible . 4.1 DIRECT RACK-MOUNT HOOK-UP The REL unit mounts in a standard 19-inch rack and occupies only one R U (1.
18 Pelco Manual C538M-A (3/04) 4.3 DAISY -CHAINING Daisy-chaining occurs when more than 64 relays are required. More impor tantly , each unit must be configured to hav e a unique address , ref erred to as a F rame Address. F r ame addressing with respect to REL units was discussed in Section 3.
Pelco Manual C538M-A (3/04) 19 5.0 OPERA TION 5.1 OPERA TIONAL OVERVIEW The basic function of the REL unit is to allow the user/operator to control various peripheral equipment via relay contacts . Each REL unit processes and ex ecutes only commands with addresses that match that of the RELs (frame address).
20 Pelco Manual C538M-A (3/04) Figure 15. Ph ysical Representation of Figure 16 REL UNIT 1 REL UNIT 2 REL UNIT 3 REL UNIT 4 REL UNIT 5 PERIPHERAL DEVICES PERIPHERAL DEVICES PERIPHERAL DEVICES PERIPHER.
Pelco Manual C538M-A (3/04) 21 Method II – The CM9760-GPI/AUX Calculator If we re visit the EXAMPLE just discussed and illustrated in Figures 15, we can immediately find the inf ormation needed by direct read-off from the information bo x es on the front of the calculator .
22 Pelco Manual C538M-A (3/04) Figure 16. Controlling REL Output Contacts From the CM9760-KBD Once the system is running and a keyboard is on-line , direct control of an REL is as f ollo ws (refer to Figure 16): 1.
Pelco Manual C538M-A (3/04) 23 6.0 SPECIFICA TIONS ELECTRICAL REL UNIT RELAY CONTACTS** Parameters: Maximum Switching Capacity 60 Watts Maximum Operating Voltage 125V AC/DC Maximum Current 2 Amps Contact Resistance 75 m ohms Rated Load Parameters: .
24 Pelco Manual C538M-A (3/04) 7.0 W ARRANTY AND RETURN INFORMA TION WARRANTY Pelco will repair or replace, without charge, any merchandise proved de- fective in material or workmanship for a period of one year after the date of shipment.
An important point after buying a device Pelco C541M-C (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Pelco C541M-C 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 Pelco C541M-C - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Pelco C541M-C you will learn all the available features of the product, as well as information on its operation. The information that you get Pelco C541M-C will certainly help you make a decision on the purchase.
If you already are a holder of Pelco C541M-C, 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 Pelco C541M-C.
However, one of the most important roles played by the user manual is to help in solving problems with Pelco C541M-C. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Pelco C541M-C 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
