Pelco C534M User Manual
®
System 9750
Relay Interface
CM9750-REL Series
Relay Interface
Installation/
Operation Manual
C534M (2/98)
Pelco • 3500 Pelco Way • Clovis, CA 93612-5699 USA • www.pelco.com
In North America and Canada: Tel (800) 289-9100 or FAX (800) 289-9150
International Customers: Tel (1-559) 292-1981 or FAX (1-559) 348-1120
CONTENTS
Section Page
1.0 GENERAL .................................................................................................. 3
1.1 IMPORTANT SAFEGUARDS AND WARNINGS ............................... 3
2.0 DESCRIPTION ..........................................................................................4
2.1 MODELS ............................................................................................4
2.2 CIRCUIT DESCRIPTION ................................................................... 5
3.0 INSTALLATION .......................................................................................... 6
3.1 MOUNTING INSTRUCTIONS ........................................................... 6
3.2 CONNECTING TO THE CONTROLLER ........................................... 6
3.3 CONNECTING POWER .................................................................... 6
3.4 WIRING THE RELAY OUTPUTS .......................................................7
3.5 INSTALLING AND REMOVING THE RELAY CARDS ....................... 7
3.6 CHANGING THE JUMPER LOCATIONS ..........................................7
4.0 OPERATION ..............................................................................................9
5.0 MAINTENANCE ........................................................................................10
5.1 REPLACING THE FUSE ...................................................................10
6.0 WARRANTY AND RETURN INFORMATION ...........................................12
LIST OF ILLUSTRATIONS
Figure Page
1 Front and Rear Views of the CM9750/CM9760 Relay Interface Unit .4
2 Relay Output Functional Schematic ................................................... 5
3 Wiring External Equipment to the Relay Outputs .............................. 7
4 Relay Card Location .......................................................................... 7
5 Relay Card Jumper Locations ............................................................ 8
LIST OF TABLES
Table Page
A 50-pin Connector ............................................................................... 6
B Relay/Jumper Reference Chart ......................................................... 8
REVISION HISTORY
Manual # Date Comments
C534M 2/98 Original version
2 Pelco Manual C534M (2/98)
1.0 GENERAL
1.1 IMPORTANT SAFEGUARDS AND WARNINGS
Prior to installation and use of this product, the following WARNINGS should be
observed.
1. Installation and servicing should only be done by Qualified Service Personnel
and conform to all Local codes.
2. Only use replacement parts recommended by Pelco.
3. After replacement/repair of this unit’s electrical components, conduct a resistance measurement between line and exposed parts to verify the exposed
parts have not been connected to line circuitry.
The product and/or manual may bear the following marks:
This symbol indicates that dangerous voltage constituting a
risk of electric shock is present within this unit.
This symbol indicates that there are important operating and
maintenance instructions in the literature accompanying this
unit.
CAUTION:
RISK OF
ELECTRIC SHOCK.
DO NOT OPEN.
TO REDUCE THE RISK OF ELECTRICAL SHOCK,
DO NOT REMOVE COVER. NO USER-
SERVICEABLE PARTS INSIDE. REFER SERVICING
TO QUALIFIED SERVICE PERSONNEL.
CAUTION:
Please thoroughly familiarize yourself with the information
in this manual prior to installation and operation.
Pelco Manual C534M (2/98) 3
2.0 DESCRIPTION
The Relay Interface units of the CM9750-REL Series provide up to 32 relay contacts for operating external equipment such as VCRs and lights. (The unit is shipped
from the factory equipped with 16 outputs.) Each of the relays can be configured for
normally open or normally closed operation by the placement of internal jumpers.
The unit is shipped with the contacts in the normally open position. Each Relay
Interface unit provides outputs for four GPIs (each GPI controls 8 relays). Refer to
Figure 1 for the front and rear view of the unit.
2.1 MODELS
POWER INPUT
System 9750
RELAYS 21 - 32
CM9750-REL16 Provides 16 relay outputs. Includes transformer to convert 120
VAC to 24 VDC.
CM9750-REL16-X Same as CM9750-REL16 except has 230 VAC transformer.
Relay Interface
RELAYS 11 - 20 RELAYS 1 - 10
FUSE
RELAY 32
INPUT FROM
CM9750/CM9760
TYPICAL FOR ALL
RELAY OUTPUTS
RELAY 1
Figure 1. Front and Rear Views of the CM9750/CM9760 Relay Interface Unit
4 Pelco Manual C534M (2/98)
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