Loopback Connectors
Loopback connectors must have the following sets of pins tied together:
DB-15
EIA-232
Male
|
| DB-25
EIA-232
Female
|
| DB-25
V.35
Female
|
| DB-15
X.21
Female
|
| DB-25
EIA-530/422
Female
|
| RJ-45
Telco
|
| 2,3
|
| 2,3
|
| 2, 3
|
| 2, 4
|
| 2, 3
|
| 1, 8
|
| 4,5
|
| 4,5
|
| 4, 5
|
| 3, 5
|
| 4, 5
|
| 2, 7
|
| 6, 8, 15
|
| 6, 8, 20
|
| 6, 8, 20
|
| 6, 7
|
| 6, 8, 20
|
|
|
| 12,13
|
| 17, 24
|
| 9, 11
|
| 9, 11
|
| 9, 11
|
|
|
|
|
|
|
| 14, 16
|
| 10, 12
|
| 14, 16
|
|
|
|
|
|
|
| 17, 24
|
| 13, 14
|
| 17, 24
|
|
|
|
|
|
|
|
|
|
|
| 13, 19
|
|
|
|
|
|
|
|
|
|
|
| 10, 22, 23
|
|
|