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Issue 2: Sep 99
TMSL 097-44018-26
Page 67
COMMAND CODE: OPR-PROTNSW (Contd)
PURPOSE (Contd)
1-for-N protection:
This command is only for timing output cards other than the TO-EA5, EA10, EA10M, EA20, & EA20M
that are set for 1:N protection. The OPR-PROTNSW and RLS-PROTNSW commands switch between a
timing output card and a protection timing output card of the same type in an HS slot.
•
The OPR-PROTNSW command is used to switch from a timing output card in a TO slot to a
protection card of the same type in an HS slot.
•
The RLS-PROTNSW command is used to switch back to a timing output card in a TO slot from
a protection card in an HS slot.
INPUT
OPR-PROTNSW:[<tid>]:<aid>:<ctag>::<switchfrom>;
The parameter values in the table below are as follows:
a
= 1–10 for MCA, 1–12 for MAN
Note:
If automatic switching was set with the SET-ATTR-CONT command and revertive switching
was not set with the SET-ATTR-CONT command and a fault occurred in the working card, then the
working card with the fault was replaced, the two commands (OPR-PROTNSW and RLS-PROTNSW)
reverse function. That is, the OPR-PROTNSW must be used to return to the working card, and the
RLS-PROTNSW must be used to transfer to the protection card.
parameter
value
meaning
aid
TO-a
timing output card
switchfrom
MAN
this value, used with 1-1 protection, causes a protection switch from the
working timing output card in slot TO-a to the mate protection timing out-
put card in the adjacent slot (used with TO-EA5, EA10, EA10M, EA20,
& EA20M cards only)
MCA
this value, used with 1:N protection, causes a switch from the working
timing output card in slot TO-a to the protection timing output card in the
HS slot (used with cards other than TO-EA5, EA10, EA10M, EA20, &
EA20M)