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Pelco C541M-C - page 1
® 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.: C1577M-A Date: August 4, 2004 Manuals Affected: CM9760 Series Manuals – C538M-A, C539M-A, C540M-B, C541M-C, ...
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Pelco C541M-C - page 2
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 .pelco.com USA & Canada: T el: 800/289-9100 • F ax: 800/289-9150 International: T el: 1-559/292-1981 • F ax: 1-559/348-1120 ...
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Pelco C541M-C - page 3
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 ........................................................................................... ...
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Pelco C541M-C - page 4
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. 1. Installation and servicing should only be done by qualified ...
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Pelco C541M-C - page 5
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. Some of the more impor tant f ...
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Pelco C541M-C - page 6
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. As illustrated, the remov al of the five flat-head Phillips screws that hold the fro ...
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Pelco C541M-C - page 7
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. (Only the bloc k for the first 16 contact pairs is shown with mating plugs.) 2. RS-422 input/outp ...
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Pelco C541M-C - page 8
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. To deter mine the screw terminal pin numbers f or a par ticular contact, refer to Figure 3 ...
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Pelco C541M-C - page 9
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. The por ts are ph ysically ref erenced as IN and OUT por ts. The RJ-45 IN conn ...
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Pelco C541M-C - page 10
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 . In other words , the IN connector requires a “flipped” cable f or connecting the first unit to the CC1, and the OUT connector requires a “flipped” cable f or cascading other unit ...
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Pelco C541M-C - page 11
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. The fuse is easily changed as illustrated in Figure 7. Figure 7. Pow er Inp ...
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Pelco C541M-C - page 12
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. The number of GPIs (General Purpose Interfaces) required by the REL is eight. ...
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Pelco C541M-C - page 13
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 . Insure that ...
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Pelco C541M-C - page 14
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 ...
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Pelco C541M-C - page 15
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 Frame/Sub-Frame Eight Required GPI #’ s Associated Running T otal SW2 SW3 Addresses with a Frame/Sub-Frame Address 12 3456 1 2 F A/SF A 1234567 8 10 0 ...
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Pelco C541M-C - page 16
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 47 11 0100 0 1 1 1 2 369 370 371 372 373 374 375 376 48 11 0100 1 1 1 1 3 377 378 379 380 381 382 383 384 49 00 1100 0 0 1 2 0 385 386 387 388 389 390 ...
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Pelco C541M-C - page 17
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 3.3.3 Software Considerations Access to the operation of specific de vices connected to REL units using keyboards commands or macro operations depends on the GPI and the specific GPI ranges each REL ...
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Pelco C541M-C - page 18
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 (1.75" or 4.45 cm) of rac k space (ref er to Figure 13). 4.2 REMOTE OPERA TION Th ...
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Pelco C541M-C - page 19
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 3.3.1. What follows is a discussion about the ph ysical h ...
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Pelco C541M-C - page 20
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). When an REL receives a command with an i ...
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Pelco C541M-C - page 21
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 PERIPHERAL DEVICES GPI RANGE FOR REL UNIT 5 PERIPHERAL EQUIPMENT ASSOCIA TED AU X ASSOCIA TED A UX ASSOCIA TED A UX ASSOCIA TED A UX ASSOCIA TED A UX ASSOCIA ...
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Pelco C541M-C - page 22
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 . Mov e the calculator wheel until the number “five” appears in the Rel ...
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Pelco C541M-C - page 23
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. F rom the Default menu, use the k eyboard keypad to enter the GPI n umber that contains the relay output y ou wish to activ ate (data o ...
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Pelco C541M-C - page 24
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: .5A @ 125 VAC 2A @ 30 VDC REL UNIT Input Voltage: Auto-ranging 100-240 VAC 50/60 Hz Power: Consumption ...
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Pelco C541M-C - page 25
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. Exceptions to this warranty are as noted below: • Five years on Pelco manufactured cameras (CC3500/CC3600/CC3 ...
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