AS4000 Subscriber Terminal
Installation and Commissioning
DLP 008
605-0000-454
Draft Issue 1.3 Date 8/02/00
Page 7 of 8
Interconnection of EIA-530 and X21
1
14
13
2
3
7
25 Male
25
1
9
8
1
8
9
15
15 Female
Figure 50. Interconnection of EIA-530 and X21
EIA 530
CCITT X21
Circuit, Name and Mnemonic
Pin No
Pin No
Circuit, Name and Mnemonic
Shield
1
1
Shield
Transmit Data
BA
(A)
2
2
103
(A)
Transmit Data
BA
(B)
14
9
103
(B)
Receive Data
BB
(A)
3
4
104
(A)
Receive Data
BB
(B)
16
11
104
(B)
Request to Send
CA
(A)
4
3
105
C
CA
(B)
19
10
105
Control -
Clear to Send
CB
(B)
13
12
106
Ind
CB
(A)
5
5
106
Indicator -
DCE Ready
CC
6
DTE Ready
CD
20
Signal Common
AB
7
8
102
Signal Common
Receive Signal Element
DD
(A)
17
6
115
Clock +
Timing (DTE Source)
DD
(B)
9
13
115
Clock -
Local Loopback
LL
18
Remote Loopback
RL
21
Test Mode
TM
25
Interconnection of EIA-530 and RS232RS449, RS 422, RS 485, RS V36
1.
For connection of EIA-530 to the above interfaces contact Airspan
