
Chapter 4. Status
Table 4-1. LA and LB Leads
LA | LB | Condition |
|
|
|
Off | Off | No test (normal) |
|
|
|
On | Off | Local line loopback |
|
|
|
Off | On | Remote line loopback |
|
|
|
On | On | Local DTE loopback |
|
|
|
V.35 Interface Leads
RS: | Request to send |
CS: | Clear to send |
CD: | Carrier detect |
TR: | Data terminal ready |
SR: | Data set ready |
LL:Local DTE port loopback
RL: | Remote port payload loopback |
TM: | Test mode. Asserted by the T3SU 300 when either the |
| network or the port is being tested. |
T3SU 300 User Manual |