Pelco C454M-C operation manual Wiring Instructions, On-Board Receiver/Driver, Txd+ Rxd+

3.2 WIRING INSTRUCTIONS

How your back box will be wired depends on the type of unit you have:

Units with an on-board receiver/driver

Units without an on-board receiver/driver (hard-wire applications)

Hardwire refers to installations using a remote receiver/driver or a true hardwire controller.

Proceed to either Section 3.2.1, On-Board Receiver/Driver, or Section 3.2.2, Hardwire or Remote Receiver/Driver.

3.2.1 On-Board Receiver/Driver

On models for suspended ceilings or hard ceilings, a plate is provided on the top of the back box with 1/2" and 3/4" conduit knockouts.

1.Bring the wiring to the back box.

Video - Refer to Table A for the type of video coaxial cable to use.

Power - If the input power to the dome is 24 VAC, refer to Table B to determine the size of wire to use. For outdoor units, make sure the wiring can supply power for the heaters and fan as well as the receiver/driver. Refer to Section 5.0, SPECIFICATIONS, for power requirements.

Control - If you are using a Coaxitron® controller, the control signals to operate the dome drive will be transmitted over the video coax.

If you are not using a Coaxitron® controller, bring wires to the back box for two

(2)RS-485 control lines (RX+ and RX-). Refer to Figure 3, 4, or 5 for the following steps.

2.Install the coaxial cable to the BNC connector.

3.Install power to the 10-position terminal block. Make sure the power switch on the side of the back box is off.

4.If you are not using Coaxitron® control, connect the control wiring to RXD+ and RXD-.

From controller	To 4-wire terminal inside back box
TXD+	RXD+
TXD-	RXD-

Proceed to Section 3.3, DOME DRIVE INSTALLATION.

12 Pelco Manual C454M-C (1/98)