User manual

Wide Bank 28 DS3 - Release 2.4 29
T1/E1 Protection and Revertive Configuration
4. To Switch T1/E1 to Protection or Working Card
The following commands will forcibly move a T1/E1 circuit between the protection (spare) and working
(home) cards for testing or maintenance. Switching will be denied only if the equipment status (RTRV-
EQPT) of the other card is NOT PRESENT (not equipped) or UNKNOWN (equipped but status unknown).
CAUTION! THESE COMMANDS MAY AFFECT SERVICE. BEFORE SWITCHING A T1 OR E1
TO A WORKING OR PROTECTION CIRCUIT, IT IS ADVISABLE TO PERFORM A RTRV-ALM-T1
OR RTRV-ALM-E1 TO VERIFY THAT NO ALARMS EXIST ON THE DESTINATION CIRCUIT.
NOTE: The Wide Bank 28 DS3 uses the circuits on the T1/E1 spare card to protect the
circuits on up to seven working cards. The working circuits are arranged in protection groups
(see diagrams for T3-T1 Configuration AIDs on page 6 and T3-E1 Configuration AIDs on
page 8). Only one circuit in a protection group can be switched to the protection circuit.
SW-TOPROTN-T1:tid:aid:ctag;
SW-TOPROTN-E1:tid:aid:ctag;
SW-TOWKG-T1:tid:aid:ctag;
SW-TOWKG-E1:tid:aid:ctag;
NOTE: The SW-TOWKG command will move a circuit to the working (home) card, but will
not clear a revertive lockout on that circuit. A revertive lockout can only be cleared by the ALW-
AUTORST command or by physically removing and replacing the card.