AT&T 555-230-894 用户手册
201CR Modem Option Settings
September 1995 Issue 1
H-5
Table H-5.
Options Switch Settings for 201 CR Modem
Option
Line Control Board (TP1B)
Description
Designation
Strap In
(Vertical)
Strap Out
(Horizontal)
Transmit
Line Signal
Level
Line Signal
Level
-4 dBm
ZE*
1,2,4,8
Switch Setting
Digital
Board
(JB4B)
Board
(JB4B)
1
2
3
4
5
6
7
8
Transmitter
Timing
Timing
External
YD
O
Automatic
Answer
Answer
DTR-Controlled
Only
Only
YF*
X
Grounding
Signal Ground
Connected to
Frame Ground
Connected to
Frame Ground
YK*
Install
E1-E2
E1-E2
Function of
Electronic
Industries
Association
Interface
Pin 18
Electronic
Industries
Association
Interface
Pin 18
Initiates
Analog
Receiver
Analog
Receiver
YS
X
Install
E3-E4
E3-E4
Continuous
Receiver
Bit Clock
Receiver
Bit Clock
Out
YP*
X
Satellite
In
YQ*
X
*
= Factory furnished
X
=Closed
O
=Open
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