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DEFINITY Made Easy Tools
Issue 2, November 2000
DEFINITY Hardware
TN767B/C/D/E
All TN767 circuit packs provide a DSX1 level physical interface to the DS1 facility and require a TN464C or greater DS1 interface. The TN767 has unpolarized line out (LO) and line in (LI) signal lead pairs.
TN767B and later suffix circuit packs support DS1 rate digital facility connectivity. The circuit packs support CO, Tie, DID, and off-premises stations (OPS) port types using the robbed-bit signaling protocol. These circuit packs also support ISDN-PRI connectivity in R7. For these applications, the signaling D-channel can connect from the TN767 to the TN765 processor interface by a permanent switched call over the TDM bus.
TN767E and later is required to communicate with CONVERSANT and for the enhanced maintenance capabilities of the 120A enhanced integrated channel service unit (ICSU) feature.
DS1 tests include loopback tests at the DS1 board edge or the 120A (if used), bit error rate (BER) loopback tests at the far-end CSU, and BER 1-way DS1 facility tests. Other tests include loopback testing specifically designed to locate DS1 facility faults.
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| Copyright� 2000 Avaya Inc |
| Send comments to MadeEasy Development Team |
| Always check at the Made Easy Web site for the most current information. |