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Cisco AS5800 Universal Access Server Dial Shelf Card Guide
78-7097-03 0A
Chapter4 Double-Density Modem Card
CT1/CE1 Trunk Card Overview
Verifying and Troubleshooting the Installation
During normal operation, all five CT1/CE1 trunk card LEDs light when the modem card is powered ON.
When the modem card CPU software starts running, it shuts off all LEDs except the power LED. The
LEDs then light again as described in Table 4-1.
Table 4-2 Modem Standards and Supported Features
Feature Description
Carrier protocols ITU V.23 at 75/1,200 bps
Telcordia Technologies (formerly
Bellcore) 103 at 300 bps
ITU V.21 at 300 bps
ITU V.22 at 1,200 bps
Telcordia Technologies (formerly
Bellcore) 212A at 1,200 bps
ITU V.22bis at 2,400 bps
ITU V.32 up to 9,600 bps
ITU V.32bis up to 14,400 bps
V.32 turbo up to 19,200 bps
V.FC up to 28,800 bps
V.34 up to 28,800 bps
V.34+ up to 33,600 bps
TIA/ITU 56K up to 56,000 bps (when
standardized)
K56flex
Error-correcting link-access protocols V.42 LAPM, MNP 2-4
Compression protocols V.42bis (includes MNP 5)
Command interface Superset of the AT command set
In-band signaling/tone generation and
detection
DTMF generation
DTMF detection
MF generation
MF detection
Other Out-of-band access for management
PPP and SLIP framing