Siemens RPM - Wiring and Power Connection; Power Connection Requirements; RPM in Middle of Style 4 HNET

Siemens Industry, Inc.
Building Technologies Division
P/N 315-033270-124
WIRING
Remove all system power before installation, first battery then AC. (To power up,
connect the AC first, then the battery.)
The PAL-1 is connected to the RPM with a standard PC printer cable. This cable is
supplied with the RPM. Connect the PAL-1 to the RPM using this cable. The two
ends of the cable are different, ensuring proper connection. See Figure 4.
The RPM requires 24VDC to operate. This power is available on the PSC-12. See
Figure 5 for wiring details.
Figure 6
RPM In The Middle Of A Style 4 HNET
12
3
4
5
6
DO NOT USE
SHIELD
RPM HNET
TERMINAL BLOCK
1
9
17
2
10
18
3
11
19
4
12
20
5
13
21
6
14
22
7
15
23
8
16
24
ONE SLOT OF CC-5
NIC-C INSTALLED
IN THE CC-5
1
9
17
2
10
18
3
11
19
4
12
20
5
13
21
6
14
22
7
15
23
8
16
24
ONE SLOT OF CC-5
NIC-C INSTALLED
IN THE CC-5
SUPERVISED &
POWER LIMITED
DO NOT USEDO NOT USE
DO NOT USE DO NOT USE
DO NOT USEDO NOT USE
NOTES:
1. No end of line resistor required.
Termination set to OFF.
2. 18 AWG min., 12 AWG max.
3. 2000 feet max. between NIC-Cs.
4. Use twisted pair or shielded twisted pair.
5. Terminate shields at one end only.
6. Power limited to NFPA72 per NEC 760.
7. Reference NIC-C Installation Instructions,
P/N 315-033240 for wiring and ground
fault detection impedance.
Figure 5
Connecting Power To The RPM
NOTES:
1. 18 AWG min., 12 AWG max.
2. Power limited to NFPA72
per NEC 760.
3. No end of line device
required.
4. 50Ω max. total wire
resistance.
5. Refer to PSC-12 Installation
Instructions, P/N 315-
033060 for ground fault
detection impedance.
+
_
CHASSIS GROUND
24V INPUT
1
2
3
TO PSC-12, TB3 TERMINAL 2
TO PSC-12, TB3 TERMINAL 1
SUPERVISED &
POWER LIMITED
The RPM can be connected to the HNET either Style 4 or Style 7. Refer to the Zeus
configuration for the proper Style. In either case, the RPM can be connected in the
middle of an HNET. For a Style 4 network, the RPM can also be connected at the
end. If the RPM is connected at the end, care must be taken to properly terminate
the HNET. See Figures 6 and 7 for the wiring instructions when the RPM is in the
middle and Figure 8 when the RPM is at the end of the network.