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M160 Internet Router Hardware Guide
Label
NO
AIRFLOW
(original
power
supply only)
CB OFF
Table 13 lists electrical specifications for the power supply.
Table 13: Electrical Specifications for Power Supply
Description
Maximum power output
DC input voltage
DC input current rating
Output voltages
Circuit Breaker Box
The circuit breaker box is located on the rear of the chassis, above the
right power supply, as shown in Figure 2.
The circuit breaker box houses two circuit breakers and sets of terminal studs,
corresponding positionally to the two power supplies, as shown in Figure 19.
For proper router operation and power load sharing, connect a different
external DC power source to each set of terminal studs.
In addition, a grounding cable attaches to separate grounding points located
above the circuit breaker box, as shown in Figure 2. For more information, see
"Power, Connection, and Cable Specifications" on page 67.
38
Power System
Color
State
Description
Amber
On steadily
Power supply is inserted, but airflow around the
power supply is not sufficient.
Amber
On steadily
Power supply is functioning, but the circuit breaker
is off.
Specification
Original power supply: 2400 W; nonisolated
Enhanced power supply: 3000 W; nonisolated
Nominal: –48 VDC, –60 VDC
Operating range: –42 to –72 VDC
80 A @ –48 V
+48 V @ 8.3 A (cooling system), +8.3 V @ 6 A (bias), –48 V to
–60 V@ 75 A
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Troubleshooting
