Keri Systems SB-293 - Manual (Page 73)

Keri Systems, Inc. Technical Reference Manual – PXL-250 and SB-293
Revision 5.5 P/N: 01836-004 Page 73
10.2 Two-Door Configuration
10.2.1 TB-7 - Lock Relay Connection
The lock relay is a Form C relay used to control the door lock. Please refer to the Lock
Relay Output section starting on page 35 for more information on Lock relay outputs
and output devices.
For a typical fail-safe door lock relay installation, refer to Table 23 and Figure 10-3
and make the following wiring and transorb connections to attach the door lock relay.
Figure 10-3: Fail-Safe Lock Relay Output Connections
For a typical fail-secure door lock relay installation using a door strike, refer to Table
23 and Figure 10-4 on page 74 and make the following wiring and transorb
connections to attach the door lock relay.
Table 23: Lock Relay
Output Connections
TB-7 Description
Pin 1 Normally-Open
Pin 2 Common
Pin 3 Normally-Closed