C Hapter 2: Vcx V7122 Sip P Hysical D Escription; Cabling The Vcx V7122 - 3Com VCX V7122 User Manual

2
Use standard 19-inch rack bolts (not provided) to fasten the device to the frame of the
rack.
3Com recommends using two additional (not supplied) rear mounting brackets to provide
added support.
Users assembling the rear brackets by themselves should note the following. The
distance between the screws on each bracket is 26.5 mm. To attach the brackets,
use 4-40 screws with a maximal box penetration length of 3.5 mm.
To place the device on a 19-inch rack's shelf, follow these steps:
1
Place the device on the preinstalled shelf.
2 You're now recommended to take the optional steps of fastening the device to the frame
of the rack (as described above) while it is placed on the shelf, so preventing it from
sliding when inserting cables into connectors on the rear panel.

Cabling the VCX V7122

See Chapter 2: VCX V7122 SIP Physical Description
the VCX V7122 rear panel connectors and LEDs.
Note that the VCX V7122 is available in many configurations, i.e., AC or DC, in the 16-trunk,
8-trunk, 4-trunk, 2-trunk or 1-trunk device. The 16-trunk dual AC (see
8-trunk DC (see Figure
Figure 8
VCX V7122 Rear Panel Cabling (16 Trunks, Dual AC Power)
1 2
28
9) configurations are illustrated here as representative products.
3
3Com VCX V7122 SIP VoIP Gateway User Manual
on page 19 for detailed information on
Figure
2 1
4
8) and the
5