Cisco 7120 Series User Manual page 14

Cisco 7140 Series Overview
Cisco 7140 Series Overview
Cisco 7140 series routers consist of the following models:
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Cisco 7140-2T3
The Cisco 7140-2T3 provides two high-speed, synchronous serial ports that support full-duplex
operation at T3 (45-Mbps) speeds. The Cisco 7140-2T3 provides the following features:
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Cisco 7100 Series VPN Router Installation and Configuration Guide
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Cisco 7140-2T3—Provides two high-speed, synchronous serial ports that support full-duplex
operation at T3 (45-Mbps) speeds.
Cisco 7140-2E3— Provides two high-speed, synchronous serial ports that support full-duplex
operation at E3 (34-Mbps) speeds.
Cisco 7140-2AT3—Provides two high-speed, ATM ports that support full-duplex operation at T3
(45-Mbps) speeds.
Cisco 7140-2AE3—Provides two high-speed, ATM ports that support full-duplex operation at E3
(34-Mbps) speeds.
Cisco 7140-2MM3—Provides two ATM ports that support full-duplex operation at OC-3c/STM1
multimode (155-Mbps) speeds.
Cisco 7140-8T—Provides eight high-speed, synchronous serial ports that support full-duplex
operation at T1 (1.544-Mbps) and E1 (2.048-Mbps) speeds.
Cisco 7140-2FE—Provides two fixed LAN ports—10BaseT/100BaseTX autosensing Ethernet/Fast
Ethernet (full and half duplex) equipped with an RJ-45 receptacle.
Integrated DSU functionality
16- and 32-bit CRCs
B3ZS line coding
Scrambling and bandwidth reduction
Loopbacks
ATM-DXI, Frame Relay, HDLC, SMDS, and PPP serial encapsulation
RFC 1213 and RFC 1407
Chapter 1 Overview
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