Link Interfaces - Avaya T3 IP Service Manual

2 Service Operations
2.29.5

Link Interfaces

2.29.5.1 AEI interface
You can connect second receiver, headset, ext. hands–free device, speech recording unit,
DSS module or switch–contact module to the AEI interface (AEI = Additional Equipment
Interface).
A list of accessories can be found in the appendix (→ p. 264).
The AEI X interface is responsible for the transmission of analogue signals and the AEI Y
interface for the transmission of digital signals.
1 2 3 4 5 6
AEIXY interface (view of inside the telephone socket)
Note:
Only connect equipment with potential isolation that complies with the criteria of a basic in-
sulation in accordance with EN60950.
4.999.099.262 - 07/07
1 XTEout (Audio Output Telephone)
2 XTEin (Audio Input Telephone)
3 XGndD (Audio Ground)
4 YTEin (Digital Input Telephone)
5 YGndD (Digital Ground)
6 YTEout (Digital Output Telephone)
2.29 Links and acessories
Page 214