Table A 202T Modem Options - AT&T 202T User Manual

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TABLE A
202T MODEM OPTIONS
FEATURE
OPTION
DESCRIPTION
SWITCH SETTING.
53
SWITCH CONTACT SETTING ON
TRANSMITTER-RECEIVER
1
2
3 4
5
6
7
8
9 0
4-Wire Operation ZK*
0
-
-
0
-
X X X X X
ZD
w/o Reverse Channel
X
-
-
X
-
X
0 0 0 0
2-Wire Operation
zct
With Reverse Channel
X
-
-
X
-
0 0 0 0 0
Compromise Delay
zv Minimum
-
X
- -
- - -
-
- -
Equalization zu• Maximum
-
0
- - - - -
-
- -
Compromise Amplitude
zx
Minimum
- -
- -
X
-
-
-
-
-
Equalization
zw• Maximum
-
- - -
0
-
-
- - -
zz
C2
- -
X
- -
-
-
-
-
-
Channel Condition
zy•
Basic 0
-
-
-
-
- - - - -
'
~2 SWITCH CONTACT SETTING ON
,!TRANSMITTER-RECEIVER
'
"
1
2
3 4 5 6 7 8 9
().
4-Wire Operation ZK*
X
- - - -
- - - -
-
Local Copy on Primary
ZA
In
X
-
- -
- - - - - -
Channel in 2-Wire
ZBt
Out
0
-
- - - - - - - -
SOFT
SQUELCH
TURNOFF
z
0 -
0
-
X
- -
-
0
X
0
- -
·-
Y*
8 ms 0
-
X
-
-
-
0
0
0
-
-
X
24 ms 0
-
X
- - -
0 0
X
- -
Soft Turnoff and
w 0
9 ms
-
0
- -
-
0
X
0
- -
Squelch Intervals
V
0 156 ms
-
0
- - -
X X
0
-
-
T 8 ms 9 ms
-
0
- - -
o.
0 0
- -
s
8 ms
156 ms
-
0
-
- -
X
0 0
- -
R 24 ms
156 ms
-
0
-
-
-
X
0
x -
-
Fast Carrier
Q*
In
- -
0
- - -
-
~
_, -
Detection
N
Out X
- - - - -
- - - -
M*
8 ms
- -
,-
0
-
-
- -
-
0
..
K
30 ms
'·
- - -
O·
~~
-
·-
- -
X
Clear-to-Send
Interval J
60 ms
-
..., -
X
- - -
- -
0
G
180 ms
-
- -
X
- -
-
- -
X
Page 10
PROVIDE
One Per
Modem
One Per
Modem
()
'
)
One Per
Modem
One Per
Modem
One Per
Modem
0
One Per
Modem
. I
One Per
Modem
One Per
Modem