Zeta Alarm Systems.
ZNDC Installation and Operation Manual
Revision 1.0
Part # MAN-ZNDC-01
Page 10
Figure No. 3.4A
3.4.2 Sigma Mk II
To install the ZNDC with a Sigma Mk II FACP, connect a cable between the RS485+ and RS485-
terminals on the ZNDC to the RS485+ and RS485- terminals on the panel (using either a NIM or
SCP1). Power the ZNDC from a 24VDC source, either one of the AUX24 outputs on the panel, or
an IPB-3 power booster. Once the ZNDC is connected, power up the panel, then scan the net-
work. The ZNDC should appear at address 10. If it does not, then check your connections and ver-
ify that the ZNDC is configured for Sigma Mk II operation.
Figure No. 3.4B
+
-
+
-
+24V
GND +24V
GND
-
+
+
-
NDC
17
18
19 20
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
TO 24VDC*
DEVICE
*NOTE: EITHER 7&8 OR 5&6
ARE ACCEPTABLE TO USE
FOR 24V OUT.
S1000
-
+
TB1
SCP1
TO OTHER
NETWORK
DEVICES
NETWORK WIRING DIAGRAM - S1000
ILLUS. 3.4B
1
2
3
4
5
6
7
8
9
10
