A
AP
PP
PE
EN
ND
DIIX
X
C
C
((C
Co
on
nttiin
nu
ue
ed
d))
PATTON ELECTRONICS MODEL 1095RC
TERMINAL INTERFACE PIN ASSIGNMENTS
RS-232, RS-530 Interface Pin Description
(DB-25 Female Connector)
(DCE Configuration)
Pin #
Signal
1
FG (Frame Ground)
2
TD (Transmit Data-A)
3
RD (Receive Data-A)
4
RTS (Request to Send-A)
5
CTS (Clear to Send-A)
6
DSR (Data Set Ready-A)
7
SGND (Signal Ground)
8
CD (Carrier Detect-A)
9
RC/ (Receive Timing-B)
10
CD/ (Carrier Detect-B)
11
XTC/ (External Transmit Clock-B)
12
TC/ (Test Control-B)
13
CTS/ (Clear to Send-B)
14
TD/ (Transmit Data-B)
15
TC (Test Control)
16
RD (Receive Data-A)
17
RC (Receive Timing-A)
18
LLB (Local Line Loop)
19
RTS/ (Request to Send-B)
20
DTR (Data Transfer Rate-A)
21
DL (Remote Digital Loop)
22
DSR/ (Data Set Ready-B)
23
DTR/ (Data Transfer Rate-B)
24
XTC (External Transmit Clock-A)
25
TM (Test Mode)
37
38
A
AP
PP
PE
EN
ND
DIIX
X
C
C
((C
Co
on
nttiin
nu
ue
ed
d))
PATTON ELECTRONICS MODEL 1095RC
TERMINAL INTERFACE PIN ASSIGNMENTS
X.21 Interface
(DB-15 Female Connector)
(DTE /DCE Configuration)
Pin #
Signal
1. . . . . . . . . . . . Frame Ground
2. . . . . . . . . . . . T (Transmit Data-A)
3. . . . . . . . . . . . C (Control-A)
4. . . . . . . . . . . . R (Receive Data-A)
5. . . . . . . . . . . . I (Indication-A)
6. . . . . . . . . . . . S (Signal Element timing-A)
7 . . . . . . . . . . . BT (Byte Timing-A, Not Used)
8 . . . . . . . . . . . SGND (Signal Ground)
9 . . . . . . . . . . . T/ (Transmit Data-B)
10 . . . . . . . . . . . C/ (Control-B)
11 . . . . . . . . . . . R/ (Receive Data-B)
12 . . . . . . . . . . . I/ (Indication-B)
13 ........................S/ (Signal Element Timing-B)
14 .......................BT/ (Byte Timing-B, Not Used)
