NEAX2400 IPX Feature Programming Manual
Page 632 NDA-24297, Issue 1
R-37 RS-464A PAD
General Description (cont’d)
In 4 Wire E+M Mode, the 8TLTR can set PAD values using switch settings and ARTD and APAD values.
In the following table, P0 and P1 are assigned by setting ARTD to a value of 0, CDN 30:PAD and setting values by
usingSwitch1(P0)andSwitch2(P1).P2andP3areassignedbysettingARTD/APADtoavalueof5,andPAD
values are set by using Switch 3 positions 1, 2, 3 and 4 (P2) and positions 5, 6, 7 and 8 (P3).
Operating Procedure
The following connections are performed:
STATION-TO-STATION CONNECTION
STATION-TO-ATT CONNECTION
CONNECTION VIA ATT
OUTGOING C.O. LINE CONNECTION FROM STATION
OUTGOING C.O. LINE CONNECTION FROM ATT
Service Conditions
1. RS-464A PAD control is performed for lines and external trunks.
2. ONS (general telephone) and OPS (long line telephone) are identified by the SFC of the station concerned.
8TLTR (2W E+M) WITH SFI 50 = 0 8TLTR (2W E+M) WITH SFI 50 = 1
8TLTR (2W E+M) WITH APAD
SETTING
ARTD
PAD
TRANSMIT
PAD
RECEIVE
PAD
ARTD
PAD 2
TRANSMIT
PAD
RECEIVE
PAD
APAD
SETTING
TRANSMIT
PAD
RECEIVE
PAD
0 0db 0db 0 ARTD PAD 1 -3db -3db
1 -3db -3db 1 -3db -3db 2 -6db -6db
2 -6db -6db 2 -6db -6db 3 -6db +6db
3 -6db +6db 3 -6db +6db 4 0db +6db
4 0db +6db 4 0db +6db 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
8TLTR (4W E+M) WITH SFI 50 = 0 8TLTR (4W E+M) WITH SFI 50 = 1
8TLTR (4W E+M) WITH APAD
SETTING
ARTD
PAD
TRANSMIT
PAD
RECEIVE
PAD
ARTD
PAD 2
TRANSMIT
PAD
RECEIVE
PAD
APAD
SETTING
TRANSMIT
PAD
RECEIVE
PAD
0 P0 P1 0 ARTD PAD 1 -3db -3db
1 -3db -3db 1 -3db -3db 2 -6db -6db
2 -6db -6db 2 -6db -6db 3 -12db -11db
3 -12db -11db 3 -12db -11db 4 -16db -11db
4 -16db -11db 4 -16db -11db 5 P2 P3
5 P2 P3 5 P2 P3 15 Pad Off Pad Off
6 Unused Unused 6 Unused Unused
7 0db 0db 7 0db 0db
