Serial #-00dr05386615

CC#-106606536

This auction is for a Avaya/Lucent Definity 120A3 CSU Module.

This item is used, but in good condition.

been pulled from a working system.

This is being sold AS-IS.

120A3 CSU Module (Channel Service Unit)
120A3 CSU Features
In combination with a DS1 circuit pack, it provides the essential functions of external CSUs
Small size, easier to install than external CSU
Does not require any option switch settings or DS1 cable
Vintage 2 and higher provide enhancements to support the payload loopback function available when the ESF framing format is selected (requires 700A loopback jack)

Compatibility

The 120A3 CSU Module is compatible with the following DS1 circuit packs:
TN464E to TN464HP
TN2464CP and earlier
TN767D or TN767E
TN2313 or TN2313AP
Supported on Definity, Multivantage, and Communication Manager servers that support TN circuit packs