Nevion SDI-TD-MUX-4 - Manual (Page 24)

SDI-TD-MUX-4 / SDI-TD-DMUX-4 Rev. N
nevion.com | 24
7.3.2 Normal control blocks
Block Blk
#
Commands Example(s) Response Control
ceq 0-3
(0) - ceq 0
ceq 3 cd | ncd Cable equalizer
No control; only used to report carrier
detected or no carrier detected.
The DMUX has only one (ceq 0) for
its HD electrical input, the MUX has
one for each SD input, 4 in total.
gpi 0 act
inact gpi 0 inact act | inact Free-running vs. Locked to SD
(MUX only)
This gpi control is normally hidden to
the end user. See the ‘cal’ command
under ch. 7.3.3
. ‘act’ means that the
frequency of the HD output from the
MUX is locked to one of the SD
inputs, while ‘inact’ means that it is
free-running. By locking to incoming
SD, frequency drift is eliminated, but
glitches will occur in all 4 outputs on
the DMUX side if/when the MUX
board must change its reference to a
different SD input.
lsr 0 on | off
lambda
lpwr
type ( c | t | n ) lsr 0 off
lsr 0 lambda 1310
lsr 0 lpwr 0
lsr 0 type c on type C 1310nm
0dBm Laser control (MUX only)
Only on/off is directly available from
Multicon. The other commands does
not affect the laser itself, they just
provide a tool to set information
about the laser fitted to the board.
C=CWDM
T=DWDM
N=None
mtx 0 mtx 0 0 2
size 4:4
Input/stream shuffler
mtx 0 controls which input is routed
to which stream (MUX) or which
stream is routed to each output
(DMUX).
mtx 1 mtx 0 0 2 size 4:1 Input selector (DMUX)
0: Always optical input
1: Always electrical input
2: Auto (pri optical)
3: Auto (latching)
mtx 2 Fallback generators (DMUX)
Do not use, not fully implemented per
SW 5.3.
mtx 3 - size 2:1 Currently selected input (DMUX)
0: optical input
1: electrical input
mtx 4 - size 6:4 < in1>
Output status (DMUX)
Reports the current status of all
four outputs:
0: stream 1
1: stream 2
2: stream 3
3: stream 4
4: color bar
5: black
Note that per SW 5.3, the fallbacks
are not yet implemented and used.
pin (0) - pin 0 cd | ncd Pin diode status (DMUX only)
No control. Only used to report