Specifications

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Cisco 7100 Series VPN Router Installation and Configuration Guide
78-6341-03
Chapter 1 Overview
Cisco 7140 Series Overview
Cisco 7140-2E3
The Cisco 7140-2E3 provides two high-speed, synchronous serial ports that support full-duplex
operation at E3 (34-Mbps) speeds. The Cisco 7140-2E3 provides the following features:
• Integrated DSU functionality
• 16- and 32-bit CRCs
• HDB3 line coding
• Scrambling and bandwidth reduction
• G.751 framing or bypass framing
• National service bits
• Loopbacks
• ATM-DXI, Frame Relay, HDLC, SMDS, and PPP serial encapsulation
• RFC 1213 and RFC 1407
Figure 1-17 shows the back of the Cisco 7140-2E3. Access to the interfaces is located at the back of the
router.
Figure 1-17 Cisco 7140-2E3—Back View
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7140 - 2E3
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Console and
auxiliary ports
Fixed LAN ports Power supplies
E3 WAN port
E3 WAN port
18494
LEDsLED
Modular port adapter
PC Card
slots (covered)
Service module