Installing the Base Station Equipment
WILINK I MODULAR BASE STATION SYSTEM MANUAL
35
Table 2-7: PIU LEDs
PWR and MASTER
LEDs
PWR
MASTER
PIU Status
Off
Off
Chassis is not connected to power
Red
Off
Power is not connected or power input is out of range or PIU card is
damaged. Chassis is powered by the redundant PIU
Red
Green
Power input is out of range or PIU card is damaged. Chassis is powered
by the PIU
Green
Off
Power to PIU is OK. PIU is in redundant mode and the chassis is
powered from the other PIU
Green
Green
Power to PIU is OK. The chassis is powered from the PIU.
HOT SWAP
Off: Power from the module to the chassis is not disconnected, the
PIU is not ready for removal
Blue: Power from the module to the chassis can be disconnected and
the PIU can be safely removed
For instructions on using the HOT SWAP handles refer to Section
2.2.9
.
2.2.5.1
Preparing a Power Cable
A 2.5m DC power cable is supplied with each chassis. Additional DC cables can
be ordered from the Supplier.
To prepare a power cable:
1
Use a cable capable of supporting a current of at least 40A. Use a cable with
2 x 8AWG (or thicker) wires for the power plus an additional 8AWG to 20AWG
ground wire.
2
The matching power connector to be used is Amphenol D-type power P/N
177TWA/3W3/SP3Y with high power socket contacts P/N 17DM53744-1.
3
Connect the cable to the power connector as follows:
Pin 1 (RTN): Red (8 AWG min wire)
Pin 2 (–48V): Black (8 AWG min wire)
Pin 3 (
): Ground (shield) (8AWG-20AWG wire)
4
Attach suitable terminal rings to the side that connects to the power source.
