10
Powerlight 1212 version1.01
1.3.5 DMX termination construction
The termination avoids the possibility of the DMX 512 signal being sent back along the cable
once it reaches the end: under certain conditions and with certain lengths, this could cause it
to over-ride the original signal and cancel it.
The termination is made by soldering a 120 1/4 W resistor across pins 2 and 3 of the 5-pole
male XLR connector (see diagram).
1.3.6 Connection RS-232
Good quality screened RG 58 50 co-ax cables must be used for connections to avoid faulty equipment
operation. Connectors used are always of the 5-pole XLR type. Refer to the diagram for wiring.
RS-232
COMPUTER
OUT
9 PIN
CONNECTOR
RS-232
COMPUTER
OUT
25 PIN
CONNECTOR
6
20
3
4
6
5
7
8
1
2
3
4
5
120
Ω
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Summary of Contents for Powerlight 1212D
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