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TMSL 097-44018-26
Issue 2: Sep 99
Page 136
COMMAND CODE: SET-ATTR-CONT
PURPOSE
SET ATTRIBUTE CONTROL
This command sets the control preferences.
1.
Input protection type (DCIM only) (aid = DCIM-ALL):
a. No protection: each DCIM card functions as a stand-alone card with 2 inputs
b. 1-plus-1 (1+1) protection: the 2 DCIM cards function as 1 input card with 4 inputs
2.
SSM Mode (applies to a single shelf or GTI card) (aid = MIS or GTI-1 or GTI-2):
a. SSM is not supported
b. SSMT: SSM is supported for DCIM-T, TOTA-M, and GTI-17 cards only
c. SSME: SSM is supported for DCIM-E, EA10-M, EA20-M, and GTI-18 cards only
d. SSMEC: same as SSME plus one additional quality level: QL-UNK
3.
Output source selection mode (applies to master and all expansion shelves) (aid = SHELF):
This option sets the timing output source selection mode (revertive or nonrevertive) which deter-
mines how the timing output cards select which internal synchronization source to use. This applies
to the four sources in the pairs shown below.
Revertive mode: The highest available source is always used.
1st choice:
clock card 1
2nd choice:
clock card 2
3rd choice:
input card 1
4th choice:
input card 2
•
If any of the above sources fail, the next available source is used.
•
If a higher source is fixed, the system uses that higher source.
Nonrevertive mode: Within the pairs shown below, sources are nonrevertive; between pairs, sources
are revertive.
1st pair
2nd pair
clock card 1
input card 1
clock card 2
input card 2
•
If clock card 1 fails, clock card 2 will be used.
•
If clock card 1 is fixed, clock card 2 continues to be used (nonrevertive).
•
If both clock cards fail, input card 1 is used.
•
If input card 1 fails, input card 2 is used.
•
If input card 1 is fixed, input card 2 continues to be used (nonrevertive).
•
If either of the input cards are being used and any clock card is fixed, that clock card will
be used.
4.
Output protection type (TO-EA5, EA10, EA10M, EA20, & EA20M only) (aid = TO-a):
a. No protection
b. 1-for-1 (1-1) protection: one timing output card in an even-numbered slot is a standby for one tim-
ing output card of the same type in an odd-numbered slot (outputs of standby timing output card
are off until working card fails)
c. 1-plus-1 (1+1) protection: one timing output card in an even-numbered slot is a hot standby for
one timing output card of the same type in an odd-numbered slot (the outputs of both cards are
always active)