Installing the Base Station Equipment
WiLink-I Modular Base Station System Manual
37
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.
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.
CAUTION
In a first generation PIU (without HOT SWAP LED), disconnect power from the PIU module before
inserting/ejecting it to/from the chassis. Before disconnecting the power cable from the PIU, the
power source must be disconnected to avoid irreversible damage due to a potential excessively
high transient current.
In a second generation PIU (with HOT SWAP LED), disconnect power from the PIU module only
after it is taken out from the chassis (or after the HOT SWAP LED is turned on). Connect power to
the PIU only after it is fully inserted into the chassis.
Table 2-7: PIU LEDs
PWR and MASTER
LEDs
PIU Status
PWR
MASTER
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
.
To prepare a power cable:
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