Cisco 2500 Series Installation And Configuration Manual page 9

Overview of the Router
System Specifications
The system specifications of the Cisco 2500 series multiport routers are listed in
Table 1-1: System Specifications
Description
Dimensions (H x W x D)
Weight
Input voltage, AC power supply
Current
Frequency
Power dissipation
Input voltage, DC power supply
Current
Power dissipation
Processor
Network interface options
Operating environment
Nonoperating temperature
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Specification
1.75 x 17.5 x 10.56 inches (one rack unit) (4.44 x 44.45 x 26.82 cm)
10 lb (4.5 kg)
100 to 240 VAC
0.6 to 1.2A
50 to 60 Hz
40W (maximum), 135.5 Btus
- 40 to -72 VDC
1.5 to 1.0A
40W (maximum), 135.5 Btus/hr
20-MHz Motorola 68EC030
model 2520:
1 Ethernet (AUI or 10BaseT), 1 ISDN BRI port, 2 synchronous
serial, 2 asynchronous/ synchronous serial
model 2521:
1 Token Ring (DB-9 or UTP), 1 ISDN BRI port, 2 synchronous
serial, 2 asynchronous/ synchronous serial
model 2522:
1 Ethernet (AUI or 10BaseT), 1 ISDN BRI port, 2 synchronous
serial, 8 asynchronous/ synchronous serial
model 2523:
1 Token Ring (DB-9 or UTP), 1 ISDN BRI port, 2 synchronous
serial, 8 asynchronous/ synchronous serial
32 to 104×F (0 to 40×C)
-40 to 185×F (-40 to 85×C)
Table
1
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1-1.