Nevion FSR-HD - Manual (Page 26)

FRS-HD Rev. G
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control.
Note 1: The info part of misc has
additional functionality when locate is
used: locating <remaining seconds>.
This enables a visible countdown clock
in Gyda, but is not a required part of
FLP400.
6.4.2 Normal control blocks
Block Blk
#
Commands Example Response Control
pin 0 on | off pin 0 on
pin 0 off cd | ncd Pin diode for optical input. No control;
only used to report carry detect or not
carry detect.
ceq 0 - ceq 0 cd | ncd Cable equalizer for electrical input. No
control; only used to report carry detect
or not carry detect.
cho 0 pri <k> |
pri <k> <l> |
pri <k> <l> <m>
pos man <k> |
pos auto
latch on |
latch off|
latch reset
rule lol |
rule los |
rule trse
t1 <hold_time>
t2 <lock_time> cho 0 pri 0
cho pri 0 1
cho pri 10 2
cho 0 pos man 1
cho 0 pos auto
cho 0 latch on
cho 0 latch off
cho 0 latch reset
cho 0 rule lol
cho 0 rule los
cho 0 rule trse
cho 0 t1 1000
cho 0 t2 1000 size 3 pri k,l,m auto
latch <latch_status>
t1 <hold time> t2
<lock time> <rule>
size 3 pri k,l,m man m
latch <latch_status>
t1 <hold time> t2
<lock time> <rule> Video input select
pri: a prioritized list of inputs, used when
change-over is automatic. The list can
have 1, 2 or 3 entries, or levels. Manual
mode is effectively the same as
automatic mode with one priority level
only, but has its own command.
0 = from optical input
1 = from electrical input
2 = generator (from cho 1)
latch: <latch_status> can be either on or
off and selects if the change-over is
latching or not, used when change-over is
automatic. Latch on means that if we've
lost our main source and moved on to a
lower priority level, we'll not search to
see if the higher pri’s will reappear.
rule: <rule> can be either los, lol or trse,
which means loss off signal, loss of lock,
and timing reference signal error. This
determines what triggers an automatic
change-over.
t1 and t2: change-over doesn't happen
immediately, as a precaution against
glitches and unstable signals. The timers
t1 and t2 let the user decide how long (in
ms) we will cling on to a missing input
before we consider it gone and move on
to the next pri level, and how long an
input with a higher priority should be
present before we consider it repaired
and switch back, respectively.
Note 1: the latch setting only applies to
rule los.
Note 2: the card change back to physical
inputs from generators regardless of
latch setting. As a side note, this means
that t2 is important even when rule=lol
and/or latch is on.
Note 3: If we have selected rule=lol and
a 3-level pri list with two physical inputs
on top and a generator at the bottom and