Keri Systems SB-293 Quick Start - Manual (Page 6)

SB-293 Satellite Board
1530 Old Oakland Road, Suite 100 01837-003 Rev. 2.3
San Jose, CA 95112 USA
(800) 260-5265 (408) 451-2520 FAX (408) 441-0309
Web: http://www.kerisys.com E-mail: [email protected]
Page 6 of 16
Quick Start Guide
SB-293
7.1.1.1 Fail-Safe Door Lock Output Relay
In a fail-safe application, if the power fails, the door is unlocked (see page 16 for information about fail-safe lock
applications).
Figure 5: Fail-Safe Door Lock Output Relay
7.1.1.2 Fail-Secure Door Lock Output Relay
In a fail-secure application, if the power fails, the door is locked (see page 16 for information about fail-secure lock
applications).
Figure 6: Fail-Secure Door Lock Output Relay
7.1.1.3 Alarm Output Relay
An alarm condition on the controller closes the normally open line, sounding an alarm.
Figure 7: Alarm Output Relay