Avaya 03-300430 User Manual

The TN464C, D, E, F, and GP Universal DS1 Interface circuit packs provide an interface to the 
DS1 facility, and are designed to support 24 DS0 channels on a 1.544-Mbps DS1 link, or 32 
DS0 channels on a 2.048-Mbps link. (The 32-channel interface is not supported on G3r V1 
systems.) The DS0 channels can be administered as trunks to other switches, lines to 
off-premises stations, ports to line-side PRI terminating devices, or ports to other line-side 
non-PRI terminating devices. (DS0 channels on TN464/Bs can only be administered as trunks 
to other switches.) For more information about how TN464 ports can be used, see the following 
MOs:

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Note:

For information about other DS1 circuit packs, see 

Note:

The TN464GP provides Echo Cancellation, and in addition, the TN464GP 
firmware may be updated using the firmware download feature.

Throughout this Maintenance Object (UDS1-BD), the term TN464 will mean any TN464C or 
higher suffix UDS1 circuit pack. If part of this section refers to a specific suffix TN464 board, it 
will be noted as such.
TN464 circuit packs support the following:

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Digital Tie, CO, and DID trunks

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DS1 off-premises (OPS) lines

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Narrowband and wideband access endpoint ports

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ISDN-PRI trunks and accompanying signaling channel

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PRI endpoint ports (PE-BCHL) and accompanying signaling channel