3Com V6100, User Manual Manual, Page: 53 / 496

V6100 and V7122 User Guide
53
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:
1
Place the device on the preinstalled shelf.
2
You’re now recommended to follow 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 V7122
See
1
Chapter 2: Physical Description for detailed information on the V7122 rear panel
connectors and LEDs. Note that the 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 ( Figure
18 ) and the 8-trunk DC ( Figure 19 ) configurations are illustrated here as representative
products.
Figure 18 V7122 Rear Panel Cabling (16 Trunks, Dual AC Power)
Table 21 V7122 Rear Panel Cabling (16 Trunks, Dual AC Power) Component Descriptions
Item # Label Component Description
1 RTM locking screws.
2
ETHERNET
Two Category 5 network cables, connected to the 2 Ethernet RJ-45
ports.
3 TRUNKS Two 50-pin Telco connector cables, each supporting 8 trunks.
4 Protective earthing screw.
5 100-240~1.5A Dual AC power cables.
1
2 3 3
1
4 5