Lathem PC400TX manual Bell Relay Connections, To connect your signaling devices power source

PC400 Terminal Installation & User’s Guide - 11

Bell Relay Connections

With the bell relay, you can program when bells or other devices will ring using the Bell Wizard in your Terminal Manager software. You should have a qualified/certified electrician connect your signaling devices to ensure proper connections and prevent damage to your equipment.

To connect your signaling device(s) power source

Unplug the bell relay screw terminal connector and connect your wires from the signaling device(s) power source to the “Common” and “Normally Open” screw terminals, plug in the connector. See the diagram, Figure 6 and IMPORTANT! note below.

Common

Normally Open

Normally Closed

(Not Used)

Bell Relay

Screw Terminal

Connector

IMPORTANT! Relay contacts provide no power for bells or buzzers. They are rated “dry” for 2.0 amps @ 24 VDC or 1.0 amp @ 120 VAC. Connecting a device or series of devices that draw more than the appropriate amperage from the terminal will result in serious damage! We recommend using the RB8 Relay Booster Box to control devices that require more than 2 amps. Contact your dealer for information about obtaining an

Maximum of 4 Bells / Horns

Whenconnectingdirectlyto 120vAC. See Important note to the left for details.

120vAC

PC400 Bell Relay Screw

Terminal Connector

Figure 6