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7700 MultiFrame Manual
7707OE-HD SD/HD Re-Clocking Fiber to Electrical Converter
5.
JUMPERS AND LOCAL CONTROLS
Several jumpers, located at the front of the module, are used to preset various operating modes. Figure
4-1 shows the locations of the jumpers.
5.1.
SELECTING THE RECLOCKING MODE
The RECLOCK jumper allows the user to set the reclocking mode.
RECLOCK
To enable reclocking of the coaxial input signal, set the jumper to the AUTO or FORCE
positions.
Set the jumper to the AUTO position to select automatic rate selection and reclocking for
19.4,143/177/270/360/540Mb/s and 1.485Gb/s signals.
Set the jumper to the FORCED position, and the FORCE RATE jumper determines the
reclocking rate.
Set the jumper to the BYPASS position to disable reclocking of the coaxial input signal. The
timing and duty-cycle of the signal are not reconditioned in this mode.
5.2.
SELECTING THE RECLOCKING RATE
The FORCED RATE jumper selects the range of reclock rates when the RECLOCK jumper is set to the
FORCE position.
FORCED RATE:
Set the jumper to the SD position to select automatic reclocking of SMPTE 259M
(143-360 Mb/s), SMPTE 305M (SDTi) and SMPTE 344M (540 Mb/s) rates
Set the jumper to the HD position to select reclocking of SMPTE 292M (1.485 Gb/s) signals.
Set the jumper to the 310M position to select reclocking of SMPTE 310M (19.4 Mb/s) signals.
To perform the 310M operation the RECLOCK jumper must be set to FORCE, and the FORCED RATE
jumper must be set to 310M.
5.3.
SELECTING WHETHER LOCAL FAULTS WILL BE MONITORED
BY THE GLOBAL FRAME STATUS
The FRAME STATUS jumper determines whether local faults (as shown by the Local Fault indicator) will
be connected to the 7700FR frame's global status bus.
FRAME STATUS:
To monitor faults on this module with the frame status indicators (on the Power
Supply FRAME STATUS LED's and on the Frame's Fault Tally output) install this jumper in the
On position (default)
When this jumper is installed in the Off position local faults on this module will not be
monitored.
7707OE-HD-8
Revision 1.2.2
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