NEC NEAX 2400 ICS Features Manual page 474

R-37
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 using Switch 1 (P0) and Switch 2 (P1). P2 and P3 are assigned by setting ARTD/APAD to a
value of 5, and PAD values are set by using Switch 3 positions 1, 2, 3 and 4 (P2) and positions 5, 6, 7
and 8 (P3).
8TLTR (2W E+M) with SFI
50=0
ARTD Transmit
PAD PAD
0 0db
1 -3db
2 -6db
3 -6db
4 0db
5 0db
6 Unused
7 0db
8TLTR (4W E+M) with SFI
50=0
ARTD Transmit
PAD PAD
0 P0
1 -3db
2 -6db
3 -12db
4 -16db
5 P2
6 Unused
7 0db
Operating Procedure
Connections listed in Item 6 in SERVICE CONDITIONS are performed.
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.
Page 444
RS-464A PAD
8TLTR (2W E+M) with SFI
Receive ARTD
PAD PAD 2
0db 0
-3db 1
-6db 2
+6db 3
+6db 4
0db 5
Unused 6
0db 7
8TLTR (4W E+M) with SFI
Receive ARTD
PAD PAD 2
P1 0
-3db 1
-6db 2
-11db 3
-11db 4
P3 5
Unused 6
0db 7
50=1
Transmit Receive
PAD PAD
ARTD PAD
-3db -3db
-6db -6db
-6db +6db
0db +6db
0db 0db
Unused Unused
0db 0db
50=1
Transmit Receive
PAD PAD
ARTD PAD
-3db -3db
-6db -6db
-12db -11db
-16db -11db
P2 P3
Unused Unused
0db 0db
NEAX2400 ICS Business Features and Specifications
8TLTR (2W E+M) with APAD
Setting
APAD Transmit
Setting PAD
1 -3db
2 -6db
3 -6db
4 0db
5 Unused
15 Pad Off
8TLTR (4W E+M) with APAD
Setting
APAD Transmit
Setting PAD
1 -3db
2 -6db
3 -12db
4 -16db
5 P2
15 Pad Off
NDA-24143, Issue 4
Receive
PAD
-3db
-6db
+6db
+6db
Unused
Pad Off
Receive
PAD
-3db
-6db
-11db
-11db
P3
Pad Off