User guide

B-4 Solo E1 DSU User Guide—June 1998
B
Table B-5 describes the pin assignments for the DB-25 to RS-449 DATA port
connector.
Table B-5 DB-25 to RS-449 DATA Port Connector Pin Assign.
RS-449 DB-25 Signal Name Signal
17 24 TT A To DCE
35 11 TT B To DCE
7 4 RS A From DTE
25 19 RS B From DTE
24 16 RD B To DTE
6 3 RD A To DTE
22 14 SD B From DTE
4 2 SD A From DTE
11 6 DM A To DTE
29 22 DM B To DTE
27 13 CS B To DTE
9 5 CS A To DTE
13 8 RR A To DTE
31 10 RR B To DTE
26 9 RT B To DTE
8 17 RT A To DTE
5 15 ST A To DTE
23 12 ST B To DTE
19 7 Signal Ground
NC NC
1 NC Frame Ground From DTE
18 25 TM To DTE
12 20 DTR To DCE
30 23 DTR To DCE