3Com V7122 Installation Manual page 16

V7122 Gateway Rear Panel Cabling (16 Trunks, Dual AC Power) Component
Table 3
Descriptions
Item # Label
1
2 ETHERNET
3 TRUNKS
4
5 100-240~1.5A
V7122 Gateway Rear Panel Cabling (8 Trunks, DC Power)
Figure 5
V7122 Gateway Rear Panel Cabling (8 Trunks, DC Power) Component Descriptions
Table 4
Item # Label
1
2 ETH
3 PSTN
4
5 48V 4A max
Electrical Earthing
The unit must be permanently connected to earth using the screw provided at the
back of the unit. Use 14-16 AWG wire and a proper ring terminal for the earthing.
To cable the V7122 gateway, follow these 4 steps:
Permanently connect the device to a suitable earth with the protective earthing screw on
1
the rear connector panel, using 14-16 AWG wire.
16
Component Description
RTM locking screws.
Two Category 5 network cables, connected to the two Ethernet RJ-
45 ports.
Two 50-pin Telco connector cables, each supporting eight trunks.
Protective earthing screw.
Dual AC power cables.
Component Description
RTM latches.
A Category 5 network cable, connected to the Ethernet 1 RJ-45 port.
Eight RJ-48c ports, each supporting a trunk.
Protective earthing screw.
2-pin connector for DC.
V7122 Digital Gateway Installation Guide