Siemens NCC-2F - Page 4

4
Figure 5
NCC-2F HNET Connections
5
NCC-2F
TB1
2
34
*
*
1
NETWORK A
(PRIMARY)
SUPERVISED
NETWORK A
(PRIMARY)
SUPERVISED
NETWORK B
(SECONDARY)
SUPERVISED
OMIT THIS PAIR
FOR STYLE 4
12345678
910111213141516
ONE SLOT OF CC-5
NIC-C
* EOLR 120 OHMS, 1/2W, 5%
P/N 140-820350
NOTES:
1. The screw terminals can accommodate one
12-24AWG or two16-24AWG.
2. From the NCC-2F to NIC-C:
2000 feet (33.8 ohms) max. per pair between
CC-5s/CC-2s.
Unshielded twisted pair
.25μF max. line to line
Shielded twisted pair
.15μF max. line to line
.2μF max. line to shield
3. Use twisted pair or twisted shielded pair.
4. Terminate shields at one and only one NIC-C.
5. Power limited to NFPA 70 per NEC 760.
6. Maximum voltage 8V P-P.
7. Maximum current 75mA during message
transmission.
8. Each pair independently supervised.
9. Positive or negative ground fault detected at
<10K ohms on pins 1-2, 3-4, 5-6, 7-8 of the
NIC-C.
Figure 6
NCC-2F-HNET-VNT Wiring on FCC Only
NOTES:
1. The screw terminals can
accommodate one 12-24AWG
or two16-24AWG.
2. From the NCC-2F to NIC-C:
2000 feet (33.8 ohms) max.
per pair between CC-5s/CC-2s.
Unshielded twisted pair
.25μF max. line to line
Shielded twisted pair
.15μF max. line to line
.2μF max. line to shield
3. Use twisted pair or twisted shielded pair.
4. Terminate shields at one and only one NIC-C.
5. Power limited to NFPA 70 per NEC 760.
6. Maximum voltage 8V P-P.
7. Maximum current 75mA during message transmission.
8. Each pair independently supervised.
9. Positive or negative ground fault detected at
<10K ohms on pins 1-2, 3-
4, 5-6, 7-8 of the NIC-C.
10. For Style 4, remove jumper P2 on all NIC-Cs except on the NIC-C that is
connected to the NCC-2F card. For Style 7, remove jumpers P2 and P4 on
all NIC-Cs except on the NIC-C that is connected to the NCC-2F card.
12345678
910111213141516
17 18 19 20 21 22 23 24
SEE NOTE 7
DO NOT USE
DO NOT USE
DO NOT USEDO NOT USE
ONE SLOT OF CC-5/CC-2
FIRST NIC-C
12345678
910111213141516
17 18 19 20 21 22 23 24
SEE NOTE 7
DO NOT USE
DO NOT USE
NETWORK A
(PRIMARY)
SUPERVISED
ONE SLOT OF CC-5/CC-2
12345678
910111213141516
17 18 19 20 21 22 23 24
SEE NOTE 7
DO NOT USE
DO NOT USE
ONE SLOT OF CC-5/CC-2
LAST NIC-C
NCC-2F
2
34
*
1
NETWORK A
(PRIMARY)
SUPERVISED
* EOLR 120 OHMS, 1/2W, 5%
P/N 140-820350
DO NOT USE
DO NOT USE
*
* EOLR 120 OHMS, 1/2W, 5%
P/N 140-820350
*
5
TB1
*
NETWORK B
(SECONDARY)
SUPERVISED
OMIT THIS PAIR
FOR STYLE 4