Signaling Interface - Avaya Nortel Communication Server 1000 Reference

NTAK10 2.0 Mb DTI card

Signaling interface

Interconnections
The external connection is through a 50-pin MDF connector.
CEPT interface
This is either an unbalanced 75 ohm or a balanced 120 ohm output which conforms to CCITT
Recommendation G.703. The impedance is selected by a switch.
Table 222: 2 MB DTI switch options
Switch
S1-1
S1-2
S2-1
S2-2
S3-1
S3-2
Channel associated signaling
Channel associated signaling means that each traffic carrying channel has its own signaling
channel permanently associated with it. Timeslot 16 is used to transmit two types of signaling:
supervisory and address.
Incoming signal
Functions of the NTAK10 with regard to incoming signaling include:
• recognizing valid changes
• determining which channels made the changes
• collecting PPM
• reporting changes to software
506 Circuit Card Reference
Off (Switch Open)
—
CC Enabled
120 ohms
Not Applicable
non-French Firmware
—
Comments? infodev@avaya.com
On (Switch Closed)
—
CC Disabled
Not Applicable
120 ohms
French Firmware
—
July 2011