Paradyne Comsphere 3830 User Manual page 92

COMSPHERE 3800 Series Modems – Model 3830
RS-232
Name
Pin
9 +10V
10 –10V
11 –
12 CT112
13 –
14 –
15 TXC
16 –
17 RXC
18 CT141
20 DTR
21 CT140
C-2
Table C-1
(2 of 3)
EIA-232-D Pin Assignments
EIA
CCITT
Circuit
– –
– –
– –
CI 112
– –
– –
DB 114
– –
DD 115
LL 141
CD 108
RL 140
November 1996
Signal Circuit
Source Function
– Reserved for
test purposes
(may be used to
drive one
RS-232 load)
– Reserved for
test purposes
(may be used to
drive one
RS-232 load)
– Unassigned
DCE Data Signal Rate
Select
– Reserved for
future function
– Reserved for
future function
DCE Transmit Clock
– Reserved for
future function
DCE Receive
Clock 18
DTE Local Loopback
DTE Data Terminal
Ready
DTE Remote
Loopback
3830-A2-GB91-20