Wiring and Connecting DC Power
80
7705 SAR-A Chassis Installation Guide
Required tools and hardware:
•
two or four lengths of wire (two lengths per supply)
•
wire cutter
•
wire stripper
•
torque driver for slot screws; No. 2 slotted blade width, 0.125 in (3.2 mm)
Follow these steps to wire and connect –48 VDC power feeds (see
):
Step 1.
For CBN installations only, ensure that the positive terminal on the DC power
source is connected to ground.
Step 2.
Make the battery return ground connection(s) (
, key item 7):
i.
Run a length of wire from the power source positive terminal to the terminal on
the router.
ii. Prepare the end of the wire at the power source according to local safety
practices and attach it to the power source positive terminal.
iii. Prepare the end of the wire at the router (see
).
iv. Attach the battery return wire to the +Batt return terminal on the router. Tighten
to a torque of 3.54 to 4.42 lbf-in (0.4 to 0.5 N
.
m) maximum.
v. For redundant power supply configurations, repeat substeps
for the
other battery return wire.
Step 3.
Make the battery connection(s) to the disconnect device (
, key item 3):
i.
Run a length of wire from the disconnect device to the router. Prepare the router
end of the wire (see
). Prepare the wire at the disconnect device
according to local safety practices.
6
Battery wire
7
Battery return wire
8
Tightening screw
9
Wire receptacle
Table 18: Wiring the DC Power Supplies Descriptions (Continued)
Key
Description
Note:
The minimum AWG power conductor for the DC input connections must be based on
the application, and on the local codes, practices, and regulations applicable for the region.
Summary of Contents for 7705 SAR-A
Page 23: ...Mandatory Regulations 7705 SAR A Chassis Installation Guide 23 Figure 3 Earth ground 9718 ...
Page 66: ...Installation Site Assessment 66 7705 SAR A Chassis Installation Guide ...
Page 76: ...Chassis Ground Wiring 76 7705 SAR A Chassis Installation Guide ...
Page 82: ...Wiring and Connecting DC Power 82 7705 SAR A Chassis Installation Guide ...
Page 132: ...7705 SAR A Ports 132 7705 SAR A Chassis Installation Guide ...
Page 154: ... 2015 Alcatel Lucent All rights reserved 3HE 10141 AAAB TQZZA Edition 01 ...
