Pathway DMX Decoder - # 8721/8741 - Manual (Page 4)

DMXDecoder User Guide
8721 DMX input, 24 analog outputs
8721AC DMX input, 24 analog outputs with internal
100-240VAC power supply
8741 DMX input, 48 analog outputs
8600 19” rack mount bracket kit
Power Supply: 9-12VDC @ 250mA (adaptor included)
Weight: 24 channel: 1.3 kg (2.9 lbs)
48 channel: 1.5 kg (3.3 lbs)
Size: 24 channel: 8 x 1.75 x 6.5” (203 x 44 x 165
mm)
48 channel: 8 x 1.75 x 11” (203 x 44 x 279
mm)
Model Description
Specifications
STATUS QUO HOLD TIME 1
Disabled (2 Sec. Time Out) OFF
Enabled ( 5 Min. Time Out) ON
Maintains last dimmer levels for set time on loss of input data
signal
2
When enabled allows analog dimmer outputs to be brought to
full one at a time as selected by the rotary address switches.
PROTOCOL SELECT 3
AMX-192 OR D54 OFF
DMX-512 ON
This switch is active only on 48 channel models,
TEST AND CALIBRATE MODE
DIP Switch Settings
DMX TERMINATION 4
DMX Line Unterminated OFF
DMX Line Terminated ON
This switch connects a 100-ohm resistor across the DMX data
pair. The unit should be terminated if it is the last receiving
device on the DMX line.
JP4 DP
1
DP
2
DP
3
DP
4
DP
5
DP
6
JP1
JP2
JP3
JP6
JP5
12
3
123
12
3
P1
JP1 JP4
JP3
JP2
P1
48 Channel Decoder Card
24 Channel Decoder Card
OUTPUT VOLTAGE ADJUSTMENT (ALL MODELS)
OUTPUT CONFIGURATION (48 CHANNEL MODELS)
CAUTION – Disconnect power from the unit before making
any changes
For 10V systems, JP1 and JP2 are installed: remove them for
15V systems. For positive outputs, jumper pins 2 and 3 of JP4,
5 and 6 and install diode packs DP1-6 with the notch facing
down (left). For negative outputs, jumper pins 1 and 2 of JP4, 5
and 6, and install the diode packs with the notch facing up
(right).
Before powering up, check to make sure all jumpers are
installed correctly. Damage will result if the unit is powered up
with any of the jumpers in the wrong position.
Place the unit in test mode (S1-2 on) and set the address
switches to 000 or 001. Ensure that the decoder is connected to
dimmer no. 1 and connect a DC voltmeter between COM and
output terminal no. 1 on the circuit board. Adjust P1 to
achieve
the desired control voltage.
OUTPUT CONNECTOR ASSIGNMENT (ALL MODELS)
If your decoder uses 25-pin D-type output connectors, you must
install JP1 on 24 channel units or JP3 on 48 channel units. This
will reassign the output control signals to confirm to the analog
pin assignment detail on page 3.
OUTPUT CONFIGURATION (24 CHANNEL MODELS)
For 10V systems, JP2 is installed and JP3 and JP4 are
removed. For 15V systems, JP2 is removed and JP3, JP4 are
installed.
05/02 Printed in Canada
[email protected]
www.pathwayconnect.com
Pathway Connectivity Inc., 103 Inglewood Plaza
1439 17Avenue SE Calgary, AB, Canada T2G 1J9
tel (403) 243-8110 fax (403) 287-1281