Avaya CMC1 사용자 설명서

The TN464HP DS1/E1 Interface - T1/E1 circuit pack interfaces between a 24- or 32-channel 
Central Office/ISDN or tie trunk and the TDM bus. 

Note:

The P designation means the circuit pack’s firmware is programmable. Refer to 

on page 231 for more 

information.

Set the switches on the circuit pack to select bit rate and impedance match. See 

on page 161. If the top switch setting is 

set to 32 channel, then set the lower switch setting to either 120 ohms or 75 ohms.

120 ohms

Twisted pair

75 ohms

Coaxial requiring 888B adapter

32 Channel

1

1. If the 24/32 channel switch is not set per administration (or vice 

versa), the circuit pack alarms and will not be present in the list 
configuration command.

2.048 Mbps

1.544 Mbps