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NEAX2400 IPX Feature Programming Manual
Page 630 NDA-24297, Issue 1
R-37 RS-464A PAD
R-37 RS-464A PAD
General Description
This service is for changing the current PAD control system for the lines and external trunks to a PAD control system
which conforms to the RS-464A specification.
The following table outlines the comparison between the current PAD control and the RS-464A PAD control.
Note: ONS: Line interface to On-Premises Line (General Telephone)
OPS: Line interface to Off-Premises Line (Log Line Telephone)
When using the 24DTR/24CCT/24PRT, APAD and ARTD, PAD 2 are ignored when switch settings are set to
ARTD fixed, and PAD patterns 1 and 2 are selectable by switch settings.
Note: In the following tables, -db indicates a decrease in volume level; +db indicates an increase in volume.
CALLING
TERMINAL
CALLED
TERMINAL RS-464A PAD CONTROL THE CURRENT PAD CONTROL
ONS ONS 6dB PAD ON 5dB PAD ON
ONS OPS 3dB PAD ON PAD OFF (0dB)
OPS ONS 3dB PAD ON PAD OFF (0dB)
OPS OPS PAD OFF (0dB) PAD OFF (0dB)
ONS ATT 6dB PAD ON PAD OFF (0dB)
OPS ATT 3dB PAD ON PAD OFF (0dB)
ONS Trunk Data assigned to ARTD, PAD Data assigned to ARTD, PAD
OPS Trunk Data assigned to ARTD, PAD2 Data assigned to ARTD, PAD
ATT Trunk Data assigned to ARTD, PAD Data assigned to ARTD, PAD
PAD PATTERN 1 PAD PATTERN 1 PAD PATTERN 1
24 DTR WITH SFI 50 = 0 24 DTR WITH SFI 50 = 1 24 DTR WITH APAD SETTING
ARTD
PAD
SETTING
TRANSMIT
PAD
RECEIVE
PAD
ARTD
PAD 2
SETTING
TRANSMIT
PAD
RECEIVE
PAD
APAD
SETTING
TRANSMIT
PAD
RECEIVE
PAD
0 -8db -8db 0
ARTD,
PAD
ARTD,
PAD
1 -2db -2db
1 -2db -2db 1 -2db -2db 2 -4db -4db
2 -4db -4db 2 -4db -4db 3 -6db -6db
3 -6db -6db 3 -6db -6db 4 -8db -8db
4 -8db -8db 4 -8db -8db 5 Unused Unused
5 0db 0db 5 0db 0db 15 Pad Off Pad Off
6 Unused Unused 6 Unused Unused
7 0db 0db 7 0db 0db