Service manual

SERVICE MANUAL TNC 415B/425
Page 30
Issue: 20.08.95
X7 Assignment X10 Connection to LE or to 1. PL
Pin No. as 1. PL as 2. PL Pin No. Assignment
1 I110 I238 1,2,3 0 V
2 I109 I237 4 serial IN 2
3 I108 I236 5,6,17,18 not assigned
4 I107 I235 7 -RESET
5 I106 I234 8 -WRITE EXTERN
6 I105 I233 9 WRITE EXTERN
7 I104 I232 10 -O5
8 I103 I231 11 -O3
9 I102 I230 12 -O1
10 I101 I229 13 shield
11 I100 I228 14,15 + 12 V
12 I99 I227 16 board ID (PK)
19 serial IN 1
20 control ready for operation
X8 Assignment 21 -SERIAL OUT
Pin No. as 1. PL as 2. PL 22 SERIAL OUT
1 I122 I250 23 -O4
2 I121 I249 24 -O2
3 I120 I248 25 -O0
4 I119 I247
5 I118 I246 X11 Connection of 2. PL or PA
6 I117 I245 Pin No. Assignment
7 I116 I244 1,2,3 0V
8 I115 I243 4-6, 14-18 do not assign
9 I114 I242 7 -RESET
10 I113 I241 8 -WRITE EXTERN
11 I112 I240 9 WRITE EXTERN
12 I111 I239 10 -O5
11 -O3
12 -O1
X9 Assignment 13 shield
Pin No. as 1. PL as 2. PL 19 serial IN 2
1 do not assign 20 control ready for operation
2 do not assign 21 -serial OUT
3 do not assign 22 serial OUT
4 I125 I253 23 -O4
5 I124 I252 24 -O2
6 I123 I251 25 -O0