Siemens Industry, Inc.
Building Technologies Division
P/N 315-048733-108
Class-B/Style 4 = ULC DCLB
Class-X/Style 7 = ULC DCLC
In Canada, ULC S524 requires that all interconnecting data communications links for
networks be wired DCLC (style 7) except for dedicated network communication to
annunciators.
The wiring diagram in Figure 6 shows the connections from the SSD-C to the NIC-C
and PSC-12. Refer to the NIC-C Installation Instructions, P/N 315-033240 and the
PSC-12 Installation Instructions, P/N 315-033060 for additional wiring information.
SSD-TB
PAIR A
EARTH
GROUND
CABLE
TO SSD
MAIN
PAIR B
A+
A–
B–
B+
P1
PSC-12
1
+
–
2
TB3
12345678
910111213141516
17 18 19 20 21 22 23 24
DO NOT USE
DO NOT USE
DO NOT USE DO NOT USE
ONE SLOT OF CC-5
NIC-C
+
E
–
TB1
TB2
Figure 6
Wiring The SSD-C
NOTES:
1. Compatible wire size:
14 - 18 AWG
2. No EOLR required. S1-1 has
to be in the ON position if
the SSD-C is at the end of a
Style 4 network.
3. Use twisted pair (Style 4/7)
or twisted shielded pair
(Style 4 only).
4. Terminate shield at one end
only.
5. Power Limited to NFPA 70
per NEC 760.
6. All wiring is power limited
and supervised.
7. For Style 7 networks the
SSD-C must be installed in
between two NIC-Cs.
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