Alcatel MainStreet 2902, Manual, Page: 45 / 344

4 — Ground and power connections
2902 MainStreet Technical Practices 4-5
May 2002 90-2906-01
2 Secure the cables to the shelf with the cable ties. Leave a service loop of 40 to
46 cm (16 to 18 in.) maximum, from the point of connection on the unit to the first
cable tie fastening. This allows the unit to be pulled out freely (see Figure 4-4).
i Secure the power cable and chassis ground wire in one loop.
ii Secure the data device cables in a second loop.
iii Secure all other cables in a third loop.
Figure 4-4 Securing cables to the shelf with service loops (top view)
3 Wind the supplied plastic spiral wrap around the power and ground cables from their
point of exit to the first cable tie fastening. Trim any excess wrap with the wire
cutters.
The wrap protects the cables from pinching when the unit is moved in and out of the
assembly.
4 Push the unit all the way into the shelf and verify that the cables are not pinched.
5 Lock the unit into place by tightening the two thumbscrews with the screwdriver.
Cables
for E1 and
alarm devices
Cables
for data devices
Shelf
Wrapped
power and
ground cables
Ground
cables
AC power
cable
Spiral
wrap
8974
Rack Rack