Request-To-Send; Clear-To-Send; Transmitted Data; Received Data - Raytheon DIDS-400 Series Technical Manual

DIDS-402-2AM13
Request-to-Send
Clear-to-Send
Transmitted Data
Received Data
Ground
The display terminal interface signals are bipolar as follows:
Data Signals
MARK = +6v::l:lv = logical 1
SPACE
=
-6v::l:lv
=
logical 0
Control Signals
OFF
=
+6v::l:lv
=
logical 1
ON
=
-6v::l:lv
=
logical 0
In the display terminal quiescent state, all data and control lines with the
exception of ground are held in a marking condition (+6v
::I:
1 v).
TO/FROM
M6DEM
CLEAR-TO-5END
DATA CARRIER
DETECTOR
RECEIVED DATA
TRANSMITTED
DATA
REQUEST -TO-SEND
RECEIVER
NO.1
RECEIVER
NO.2
RECEIVER
NO.3
TRANSMITTER
NO.1
TRANSMITTER
NO.2
R48
TO/FROM
INTERNAL CIRCUITS
CIRCUIT CB
CIRCUIT CF
(NOT USED)
CIRCUIT BB
CIRCUIT SA
CIRCUIT CA
DISPlAY TERMINAL .....
I--------.JNIIW~--~
.+22VDC
READY (NOT USED)
DID,68-)07
Figure 4-2. Modem Interface Circuits
4-5