Pathway LR Manual - Manual (Page 45)

DMXPathfinder LR Installation & Assembly
44
Remember that for systems with only one input module, only the CABLE A
jacks need ribbon cable jumpers and the bus terminator installed.
I/O C ABLE C ONNECTION
Strip back about 3 inches (8cm) of cable jacket and braid shield from each input
or output cable. Apply a 2.5" (6.5cm) piece of 1/16" heat shrink to the drain wire
and a 1" (2.5cm) piece of 3/8" heat shrink over the exposed braid ends where
each cable was stripped. These precautions are to ensure that cable shields
cannot contact each other or equipment ground.
Strip about 1/2" of insulation from the four signal wires in each cable.
Bend over 1/4" of the exposed conductors on all five wires and connect them to
the terminal block. Note that each five-position terminal block is numbered 1
thru 5 on the termination board. This corresponds to the pin numbering on XLR
5-pin connectors, that is:
Pin 1 -- Signal Common (shield)
Pin 2 – DMX Data (-)
Pin 3 – DMX Data (+)
Pin 4 – Talkback Data (-)
Pin 5 – Talkback Data (+)
Be sure to use one twisted pair for the DMX data and the other for Talkback
data. It is also good practice to label each station cable and corresponding
terminal block header position with the cable number.
Input Modules are provided with both 5-position rear mounted terminal blocks
and parallel 5-pin XLR male faceplate jacks. In some installations, the
hardwired cable terminates at female jacks mounted on an auxiliary panel. In
this case, no connection is made to the Input Module’s rear terminal blocks;
instead short XLR patch cables are used to interconnect the auxiliary panel
jacks with the Input Module’s faceplate jacks.