Pathway #8863, 8865, 8867, 8869, 8863/5 - Manual (Page 2)

Printed in Canada
[email protected]
www.pathwayconnect.com
GRAY
Pathway Connectivity, 480C - 36 Avenue S.E.,
Calgary, AB, T2G 1W4 Canada
tel (403) 243-8110 fax (403) 287-1281
DMXRepeater User Guide
continued
DMX Basics
• All wiring must be in a continuous run, daisy-
chained, no “Tees” are permitted
• “Stars” are permitted only in conjunction with
a repeater
• Cable shield may be grounded at one end
only, preferably at the control console
• Maximum cable length is 2,000 ft.
• Receiving devices have male connectors,
transmitters have female
• 5 pin XLR type DMX connectors are
standard:
Pin 1: Common
Pin 2: Data (-)
Pin 3: Data (+)
Pin 4: Talkback Data (-) (Optional)
Pin 5: Talkback Data (+) (Optional)
• 3 pin XLR type connectors are a non-
standard alternative:
Pin 1: Common
Pin 2: Data (-)
Pin 3: Data (+)
• Wire must be Belden 9842 (120Ω), 9829,
(100 Ω) or equivalent
• A maximum of 32 DMX receiving devices
can be present on a single DMX line
• The last DMX device on the line must be
terminated with a termination switch or
resistor with a value of 100 to 120 ohms
between pins 2 and 3.
Rack Mounting
DMXRepeaters can be rack mounted by using an
optional 8801 19" Rack Mount bracket kit. The kit
consists of two rack mount ears that are attached
to the DMXRepeater using the 6-32 screws
included in the kit.
Power
DMXRepeaters are designed to work on voltages
from 100-240 volts AC. It will automatically sense
the incoming voltage and adjust accordingly. Be
sure to use the correct power cord if your location
requires something other than the 120V U-ground
cord included with the unit.
8865 1 in - 6 out bi-directional DMXRepeater, 5 pin XLR
8863 1 in - 6 out DMXRepeater , 3 pin XLR
8863/5 1 in—6 out DMXRepeater, 3-3pin & 3-5 pin XLR
8867 1 in - 6 out DMXRepeater , terminals
8869 1 in - 6 out DMXRepeater , RJ45
Power Supply: Universal input (100-240V, 50/60Hz)
Connections:
5 pin XLR , 3 pin XLR, terminals or RJ45
Isolation 2500V Opto-isolation on DMX lines
4000V Mains isolation
Size: 13.2 x 7.8 x 1.75” (335 x 198 x 44mm)
Protocols: DMX512 or any RS422 or RS485 based
Model Description
Specifications
DMX Termination
If only one DMXRepeater is used, and nothing is
connected to the DMX THRU receptacle, the
termination switch must be set in the direction of the
arrow (ON) to terminate the incoming DMX signal
from the console. If several DMXRepeaters are
connected together using the DMX Thru connector
on each unit, only the last DMXRepeater in the chain
is terminated, all the others are not terminated
(switch in the right position).
DMX receiving devices such as dimmers or scrollers
are generally provided with a termination switch,
termination jumper or other means of connecting the
required termination resistance across the DMX line.
Always make sure that the last receiving device
connected to any output line is properly terminated.
To ensure that the incoming console DMX signal
cannot be excessively terminated, the
DMXRepeater’s termination switch also disables the
DMX Thru connection.
09/03
Screw Terminal Connections
On the 8867 model, auxiliary screw terminal
connectors are supplied on the rear panel. The pinout
of these connectors is the same of that of 5 pin XLR
connectors. .