User guide

Release Notes for Cisco IOS Release 12.4T

OL-8012-09 Rev. B0

Platform-Specific Information

Cisco 1760

The voice- and data-capable Cisco 1760 router provides global Internet and company intranet access,

and includes the following features:

• VoIP voice and data functionality; the router can carry voice traffic (for example, telephone calls

and faxes) over an IP network

• Support for Cisco IOS Firewall, Intrusion Detection Systems, and IPSec Virtual Private Networks

• Modular architecture

• Network device integration

The Cisco 1760 router has the following hardware components:

• One autosensing 10/100 Fast Ethernet port, which operates in full- or half-duplex mode (with

manual override available)

• Two voice-only interface card slots—Supports a single VIC with two ports per card

• Two WAN/VIC slots for either WICs or VICs

• Synchronous serial interfaces on serial WICs

• Asynchronous serial interfaces on serial WICs

• ISDN WICs—ISDN dialup and IDSL at 144 kbps. Encapsulation over ISDN leased line: Frame

Relay and PPP

• One auxiliary (AUX) port (up to 115.2 kbps asynchronous serial)

• One console port

• One internal expansion slot—Supports hardware-assisted services such as encryption (up to T1/E1)

and compression

• One security slot that supports Kensington or similar lockdown equipment

• DRAM memory—Cisco 1760: 64 MB default, expandable to 160 MB

• Flash memory—Cisco 1760: 32 MB default, expandable to 64 MB

• Rack-mount form factor

The Cisco 1760 router also supports any combination of one or two of the following WICs, which are

shared with the Cisco 1600 series, Cisco 1720, Cisco 2600 series, and Cisco 3600 series routers:

• WIC-1T: one-port high-speed serial (synchronous/asynchronous) (T1/E1)

• WIC-2T: two-port high-speed serial (synchronous/asynchronous) (T1/E1)

• WIC-2A/S: two-port low-speed serial (synchronous/asynchronous) (up to 128 kbps)

• WIC-1DSU-56K4: one-port 4-wire 56-kbps DSU/CSU WIC

• WIC-1ADSL: one-port ADSL WIC

• WIC-1ADSL-I-DG: one-port ADSLoISDN WIC

• WIC-1ADSL-DG: one-port ADSLoPOTS WIC with dying gasp

• WIC-1B-S/T: one-port ISDN BRI S/T

• WIC-1B-S/T-V3: one-port ISDN WIC (dial and leased line)

• WIC-1B-U: one-port ISDN BRI U with integrated NT-1 (WIC-1B-U-V2 replaces WIC-1B-U in

Cisco IOS Release 12.3)

• WIC-1B-U-V2: one-port ISDN BRI NT-1 WIC for the Cisco 1700, 2600, 3600, and 3700 series