Specifications

Overview of the Router 1-9
Obtaining Service and Support
Obtaining Service and Support
For service and support for a product purchased from a reseller, contact the reseller.
Resellers offer a wide variety of Cisco service and support programs, which are described
in the information packet that shipped with your chassis.
1. BTU = British thermal unit.
Network interface options 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
Operating environment 32 to 104°F (0 to 40°C)
Nonoperating temperature –40 to 185°F (–40 to 85°C)
Operating humidity 5 to 95%, noncondensing
Noise level 34 dBa @ 3' (0.914 m)
Regulatory Compliance FCC Class A. For more regulatory information, refer to
the Regulatory Compliance and Safety Information
document that accompanied you router.
Description Specification