Keri Systems SB-293 - Manual (Page 80)

Technical Reference Manual – PXL-250 and SB-293 Keri Systems, Inc.
Page 80 P/N: 01836-004 Revision 5.5
10.2.4 TB10 - General Purpose Output Relay Connections
If output relays three and four have not been configured for use for door held open
annunciation (as described in the previous section) they are available for general-
purpose use. General-Purpose Output Relays are Form C relays that provide an output
to enable or disable a device outside the controller. This device can be attached to the
relay's normally closed circuit so that the device is always on until the relay energizes
to open the circuit and turn it off. Or, this device can be attached to the relay's normally
open circuit so that the device is always off until the relay energizes to turn it on.
Depending upon the type of device being installed and your application, the device
may require a normally closed/common connection, a normally open/common
connection, or a normally closed/common/normally open connection. Every
application requires the common lead connection. Refer to the General-Purpose
Output Relay section on page 37 for more information on general-purpose relay
outputs and output devices.
For examples of typical general-purpose relay installations, refer to Table 27, and
Figures 10-8 and 10-9, both on page 81, and make the following wiring and transorb
connections.
Table 27: General-Purpose Output Relay
Connections – Two-Door Configuration
TB-10 Description
TB-10, Pin 1 Normally-Open – GPO 3
TB-10, Pin 2 Common
TB-10, Pin 3 Normally-Closed – GPO 3
TB-10, Pin 4 Normally-Open – GPO 4
TB-10, Pin 5 Common
TB-10, Pin 6 Normally-Closed – GPO 4