Allied Telesis AT-PWR1200 User Manual

Page of 92
Chapter 2: Installing the AT-RPS3000 Chassis and Power Supply Modules
66
2. Secure the cable to the switch by tightening the two thumbscrews.
Figure 46. Securing the AT-RPS-CBL1.0 Cable to the Switch
If the AT-RPS3000 Chassis is already operational, perform step 3 to 
turn off the RPS port before connecting the RPS cable. Otherwise, go 
to step 4. 
Caution
Never connect or disconnect an RPS cable from an RPS port on an 
operational AT-RPS3000 Chassis without first turning off the port. 
Failure to disable an RPS port may damage the redundant power 
supply system.
3. On the front panel of the AT-RPS3000 Chassis, examine the CABLE 
LED that corresponds to the port to which you will connect the cable. If 
the LED is off, go to the next step. If the LED is green, press the On/
Off button to turn off the port. The LED should turn off.
For example, if you intend to connect the DC RPS cable to port 3 on 
the AT-RPS3000 Chassis, check the CABLE LED for port 3. If the LED 
is on, press the port’s On/Off button to disable the port.
Figure 47. RPS Port On/Off Buttons and CABLE LEDs
STACK
ING
AT
-P
W
R
8
00
DC P
OWER
FAUL
T
100-240
 VAC~1
2A M
AX
PO
WER 
S
UPPL
Y
RPS 
READY
RPS IN
PUT
WARNIN
G
This unit
 may
 have
 more tha
n one p
ower in
put. To
 reduce
 the risk 
of 
electric
 shock, d
isconne
ct both
 A/C and
 RPS in
puts be
fore ser
vicin
unit.
2133
2161
CABLE LED
Port On/Off Button