Stanley Easikey 250 User And Installation Manual page 42

Lock Wiring
Two different lock wiring configurations are required for Fail-Secure and Fail-Safe locks.
Fail-Secure locks are wired so that the relays are in parallel, so that if any relay closes,
power will be applied. Fail-Safe locks are wired with the relays in series, so whenever one
relay opens, power will be removed.
Power and Lock Wiring for Dual Controllers, Fail-Secure
Power and Lock Wiring for Dual Controllers, Fail-Safe
1 Easikey 250 Controller, Lock 1
2 Easikey 99 / 250 Controller, Lock 1
P1 P2 L1 L2
1
X
Z
P
P1 P2 L1 L2
1
X
Z
P
42
P1 P2 L1 L2
2
P1 P2
L1 L2
2
P Power Supply
X Fuse
Z MOV