Nortel Networks HotWire 8600 - Manual (Page 29)

Installing and Connecting the Hardware
2-13 8600-A2-GN20-20 October 1997
Supplying Power
The HotWire 8600 DSLAM chassis is available in two versions:
H dc power (– 40.0 to – 60.0 Vdc; maximum current draw is 2 amps)
— The dc version has two separate dc inputs, A and B, to provide power
redundancy.
H ac power (100 – 250V; 50 – 60 Hz; maximum current draw is
3 amps @ 110 Vac)
— The ac version can provide power redundancy if a separate – 48 Vdc
source is connected to the B input terminal.
Using a Single DC Power Source
"
Procedure
To supply – 48 Vdc power to the 8600 chassis from a single – 48 Vdc power
source:
Make sure that the dc power source wires are not powered (i.e., the
circuit breakers are open).
The ends of the power source wires (14 AWG – 18 AWG solid or
stranded wire) must be stripped of insulation. If the wires are not stripped,
strip the tip of each wire (about 1/3-inch in length) before inserting the
wire into the appropriate terminal on the – 48V input terminal block.
1. Insert the following wires in the appropriate terminal and securely fasten each
wire by tightening the screw above it. The insulation should be fully within the
terminal block and no bare wire should be exposed outside of the block.
NOTE:
You should clearly label these power source wires as – 48V and RTN
respectively.
Insert Power Source A’s . . . Into the . . .
Wire – 48V A input terminal.
RTN wire RTN A (return) terminal.