7 x21 dce, X21 dce – ATL Telecom AM200 User Manual
Page 129
ATL User Guide
AM200 Modem
129
13
13.8.7 X21 DCE
The X21DCE connection on the AM200 is supplied via a 25way male D Type to 15Way female D Type
Converter Cable. The cable plugs into the RS530 connector on the back of the AM200.
25 Way D Type Pin
Out
Name
CCT
15 Way D Type Pin
Out
1
Shield
101
1
2
Transmitted Data A
103
2
3
Received Data A
104
4
4
Request To Send A
105
3
5
Clear To Send A
106
6
Data Set Ready A
107
7
Ground
102
8
8
Data Carrier Detect A
109
5
9
Received Clock B
115
13
10
Data Carrier Detect B
109
12
11
External Transmitter Timing B
113
14
12
Transmitted Clock B
114
13
Clear To Send B
106
14
Transmitted Data B
103
9
15
Transmitted Clock A
114
16
Received Data B
104
11
17
Received Clock A
115
6
18
Local Loopback
141
19
Request To Send B
105
10
20
Data Terminal Ready A
108
21
Remote Loopback
140
22
Data Set Ready B
107
23
Data Terminal Ready B
108
24
External Transmitter Timing A
113
7
25
Test Mode
142
25 way Male D-Type
Pin 1
Pin 1
15 way Female D-Type