22 Additional Technical Information
22.1 Block Diagram XMT Interfaces
22.2 Ground Topologies
Is the XMT battery operated, the DMX out port is an
isolated transmitter.
Is the XMT connected to a PC, the DMX out port might be
a
ground referenced transmitter
when the USB is
grounded.
Is the XMT battery operated, the DMX in port is an
isolated receiver
.
Is the XMT connected to a PC, the DMX in port might be a
ground referenced receiver
when the USB is grounded.
Is the XMT connected to a DMX controller with a ground
referenced transmitter, the XMT DMX out port is a
ground referenced transmitter
.
Is the XMT connected to a USB charger, the DMX in port
might be an
isolated transmitter
when the USB is not
grounded.
23 PRELIMINARY
PR
OT
EC
TI
ON
CABLE
TESTER
RECEIVER TRANS-
MITTER
PR
OT
EC
TI
ON
CABLE
TESTER
DMX IN
2
3
1
4
5
2
3
1
4
5
DMX OUT
Summary of Contents for XMT-120A
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