Specifications

Cisco 1600 Series
Cisco Site Preparation Guide
3-6
• Asynchronous serial protocols: Point-to-Point Protocol (PPP), Serial Line Internet Protocol
(SLIP)
• Asynchronous interface: EIA/TIA-232
• Synchronous serial WAN services: Frame Relay, X.25, SMDS
• Synchronous serial protocols: PPP, HDLC, LAPB, IBM/SNA
• Synchronous serial interfaces supported on Cisco 1601 and WIC-1T card: EIA/TIA-232, V.35,
X.21, EIA/TIA-449, EIA-530
1. 64 kbps ISDN leased line support on the WIC-1B-S/T-LL card is available on B1 channel only. 128kbps ISDN leased line support
on the WIC-1B-S/T-LL leased line card is expected on Cisco IOS Release 11.3(3)T in Q2’98.
Table 3-5 Serial Interfaces Supported by the Cisco 1601 and 1602 Routers and Serial
WAN Interface Cards
Cisco 1601
On-board WAN
Cisco 1602
On-board WAN WIC-1T Card
WIC-1DSU-56K
4 Card
WIC-1DSU-T1
Card
Asynchronous serial
connection over
basic analog
telephone
Up to 115.2 kbps Not supported Up to 115.2 kbps Not supported Up to 115.2 kbps
Synchronous serial connections:
Leased Line / Digital
Data Service
(DDS)
Up to 2.0 Mbps
with external
DSU/CSU
56 kbps Up to 2.0 Mbps
with external
DSU/CSU
56 or 64 kbps 56 or 64 kbps
Switched 56 56 kbps with
external
DSU/CSU
56 kbps 56 kbps with
external
DSU/CSU
56 kbps 56 kbps
Table 3-6 ISDN Interfaces Supported by the Cisco 1603 and 1604 Routers and
ISDN WAN Interface Cards
Feature
Cisco 1603/1604
On-board WAN WIC-1B-S/T card WIC-1B-U card
WIC-1B-S/T-LL
card
ISDN dialup X X X Not supported
ISDN Leased Line 64 kbps Rel 11.1 Rel 11.1 Rel 11.1 Rel 11.2(9)P
1
ISDN Leased Line 128 kbps Rel 11.3(1) Rel 11.3(1) Rel 11.3(1) Q2’98
Frame Relay encapsulation
over ISDN Leased Line
XXXX
PPP encapsulation over
ISDN Leased Line
XXXX
PPP compression (up to 4:1) X X X X