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Page 3 of 8
AMG3723 Instruction Sheet D18013-
01.doc
Introduction
Unit Functional Schematic
The
AMG3723
transmits and
receives the optical signals to/from
a primary optical channel.
The optical channel is transmitted
on a single optical fibre around the
ring in one direction and operates
at a single wavelength.
The primary channel operates on
1310nm.
The
AMG3723
receives and drops off data signals transmitted from an
AMG3784
receiver. It then
inserts video and data signals onto the outgoing optical signal.
As each unit regenerates the optical signal, the optical dynamic range between each optically
connected node is 17dB.
Video Input Channel Configuration
At the
AMG3723
or rackmount
AMG3723R
insert unit, video signals present at the BNC inputs can be
inserted on one to eight video channels transmitted on the optical fibre. The first video channel
number of each insert unit is set by the rotary switch on the front panel of the unit.
It is normal to set each insert unit to a different channel number. If the same number is used twice, an
insert unit connected 'down stream' on the primary optical route will 'over-write' any coincident video
channels coming from the previous insert unit and those video signals will be lost.
The switch channel numbers 1 to 8, correspond to video channels 1-8. Unused switch channel
numbers 0 & 9 duplicate video channel selections 1 & 8 respectively. i.e. setting switch to position 0 or
1 selects video channel 1 and setting switch to position 8 or 9 selects channel 8.
Optical Connection
The
AMG3723
or rackmount
AMG3723R
is designed to be connected in a ring or point to point
system.
