4.2.1 Connect wire in VTH embedded box to VTH port. Connect network port to
cable which connects to the switch.
Note: If the switch supplies power to VTH, then do not supply DC 12V power to the
VTH.
Definition of VTH:.
01. Alarm port: 8-ch alarms.
02. Test port: to testing device port.
03. Network port: to VTH.
04. Power: to external DC 12V.
05. Handset port: external handset
Figure 4- 10
01. Alarm port:
1-ALM1: alarm input port 1
2-ALM2: alarm input port 2
3-ALM3: alarm input port 3
4-ALM4: alarm input port 4
5-GND1: public GND 1
6-ALM5: alarm input port 5
7-ALM6: alarm input port 6
8-ALM7: alarm input port 7
9-ALM8: alarm input port 8
10- GND2: public GND 2
See Figure 4- 11.
Figure 4- 11