Signal
Pin no.
X.21
(DB-15)
DTE
X.21
(DB-15)
DCE
V.35
(M34)
DTE
V.35
(M34)
DCE
V.36
(DB-37)
DTE
V.36
(DB-37)
DCE
CBS (B)
A9 (9)
12
10
27
25
CBS (A)
A10 (10)
5
3
D
C
9
7
RxC (B)
A11 (11)
13
14
X
W
26
35
RxC (A)
A12 (12)
6
7
V
U
8
17
Mode
DCE
A13 (13)
8
B
19
Mode 0
B1 (14)
B
19
19
DTR (B)
B2 (15)
30
29
DTR (A)
B3 (16)
H
E
12
11
DCD (B)
B4 (17)
31
31
DCD (A)
B5 (18)
F
F
13
13
DSR (B)
B6 (19)
29
30
DSR (A)
B7 (20)
E
H
11
12
TxC (B)
B8 (21)
W
AA
23
23
TxC (A)
B9 (22)
U
Y
5
5
Mode 1
B10 (23)
Mode 2
B11 (24)
8
8
TxCE (B) B12 (25)
13
AA
X
35
26
TxCE (A) B13 (26)
6
Y
V
36
8
6 Technical data
Funkwerk Enterprise Communications GmbH
64
R1xxx/R3xxx/R4xxx