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Cisco AS5800 Universal Access Server Dial Shelf Card Guide
78-7097-03 0A
Chapter 6 CT1/CE1 Trunk Card
CT1/CE1 Trunk Card Overview
Figure 6-1 shows the CT1/CE1 trunk card components.
Figure 6-1 CT1/CE1 Trunk Card Components
The CT1/CE1 trunk card performs the following functions:
• Converts pulse code modulation (PCM) bitstreams to digital packet data.
• Forwards converted and packetized data to the dial shelf main processor, which examines the data
and forwards it to the router shelf. From the router shelf, the data is routed to the external network.
• Supports all modem standards (such as V.34 and V.42bis) and features, including dial-in and
dial-out.
• Supports online insertion and removal (OIR), a feature that allows you to remove and replace
CT1/CE1 trunk cards while the system is operating. CT1/CE1 trunk cards can be removed without
disrupting the operation of other cards and their associated calls. If a CT1/CE1 trunk card is removed
while the system is operating, connections or current calls on that card are dropped. Calls that are
being handled by other cards are not affected.
You can install a CT1/CE1 trunk card in the slots numbered 2 to 11 on the dial shelf. If installed in slots
0 or 1 the CT1/CE1 trunk card is automatically powered down. We recommend that you install mixes of
T3 and T1 cards, or E1 trunk cards in slots 2 to 5. Trunk cards are required for call termination and can
only operate in slots 0 to 5. You can use double-density modem cards, CT1/CE1 trunk cards, and VoIP
cards simultaneously.
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