Pelco CM9760-CDU-T User Manual

INSTALLATION/OPERATION

CM9760-CDU-T
Code Distribution Unit

C1940M-B (11/06)

Important Safety Instructions

1. Installation and servicing should be done only by qualified service personnel and conform to all local codes.

2. Unless the unit is specifically marked as a NEMA Type 3, 3R, 3S, 4, 4X, 6, or 6P enclosure, it is designed for indoor use only and it must not
be installed where exposed to rain and moisture.

3. Use only replacement parts recommended by Pelco.

4. 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.

CAUTION:

This symbol indicates that there are important operating and maintenance instructions
in the literature accompanying this unit.

RISK OF ELECTRIC SHOCK.

DO NOT OPEN.

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Regulatory Notices

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful
interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

RADIO AND TELEVISION INTERFERENCE

This equipment has been tested and found to comply with the limits of a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits
are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio
communications. However there is no guarantee that the interference will not occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try
to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and the receiver.

• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

• Consult the dealer or an experienced radio/TV technician for help.

You may also find helpful the following booklet, prepared by the FCC: “How to Identify and Resolve Radio-TV Interference Problems.” This
booklet is available from the U.S. Government Printing Office, Washington D.C. 20402.

Changes and modifications not expressly approved by the manufacturer or registrant of this equipment can void your authority to operate this
equipment under Federal Communications Commission’s rules.

This Class B digital apparatus complies with Canadian ICES-003.

Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada.

C1940M-B (11/06) 3

Description

The CM9760-CDU-T code distribution unit is a 16-channel RS-422 transmit-only (2-wire and ground) distributor. It was designed as an accessory
of the System 9760™, but can be used with any system that uses RS-422 serial communications. The CDU will primarily be used to install pan/tilt
and dome receivers in a “star’’ configuration.

The CM9760-CDU has the following features:

• Two 8-position, RJ-45 connectors in parallel, providing an input from a controller and an output for an additional daisy-chained CDU box

• Sixteen 3-position screw terminal connectors used to output 16 RS-422 transmit only code lines

• Two-pin terminal connector (refer to Figure 3) for an external 10 to 24 VAC/VDC power source

• Standard 100-240 VAC 50/60Hz line input (autoranging)

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