Siemens FC901-U3 - Optional City Tie;Leased Line; DACT Wiring

Optional City Tie/Leased Line
FC901 provides one city tie or two leased lines to connect with local energy and polarity
reversal.
City tie and Leased line
Supervised, Power Limited
CT_P
CT_N
LL_SP
City tie
LL_SN
+
-
Master Box
CT_
P
CT_
N
LL_SP
Leased line
LL_SN
+
-
+
-
leased line
alarm/
trouble
detection circuit
leased line
supervisory
detection circuit
DACT Wiring
FC901 will provide two connections to Public Switched Telephone Network (PSTN).
Panel
RJ31X
RJ31X
Telephone line #1
Telephone line #2
Optional output to tel
Optional output to tel
44