I
NPUT
S
IGNAL
:
ANSI E1.11 DMX512-A, ANSI E1.20 RDM
O
UTPUTS
:
16 analog 0-10VDC nominal
O
UTPUT
R
ATING
:
100mA current drive per channel sinking
10mA current drive per channel sourcing
E
XCEEDING
THESE
RATINGS
MAY
RESULT
IN
DAMAGE
TO
THE
DEVICE
C
ONNECTIONS
:
S
IZE
:
Two piece compression screw terminals, 16 - 24 AWG
3.5” x 6.25” x 1.25” (90mm x 160mm x 35mm)
CONTROLLER SPECIFICATION
AUX-IN: SET AUXILIARY INPUTS
rev.3
9/15
Printed in Canada
www.pathwayconnect.com
SNAP
Interface Installation/Configuration
DMX DISP—INCOMING DMX LEVEL
Auxiliary inputs allow a dry contact closure to force a re-
lay to close or an analog output to open (go to full) —in
effect over-riding the DMX value.
For control from a momentary contact, short AUX1 to
COM to close the relay and/or open the analog output.
Short AUX2 to COM to return the outputs to DMX control.
For control from a maintained contact, AUX1 and AUX2
must be jumpered together. When a contact is closed
between COM and AUX1/AUX2, the associated relays
will close and the analog outputs will open. When the
contact is opened, DMX control will be restored.
Both relays and analog outputs must be assigned to AUX
control. With the indicator next to AUX-IN, press and hold
the Enter button until dots flash on the two character dis-
play. Use UP/Down to select the desired output - a hash
mark in the upper left of the display indicates an analog
out, while no has is a relay. Press Enter. The dots now
flash on the three character display. Use Up/Down to
switch between 'No' and 'Yes' to assign the output to AUX
control. Press enter to accept and continue selection.
Press ESC to complete and exit.
DMX Display allows the user to review incoming DMX
channel levels, as a trouble-shooting aid.
With the indicator LED lit next to DMX DISP, press and
hold the Enter button. Dots will flash along the bottom of
the three-character display. Use the Up/Down button to
select the DMX channel to review (1 to 512).
The incoming DMX level for the selected channel will be
shown on the two-character display as a percentage (0—
99%), with “FL” indicating 100%, or full on.
Pathway Connectivity—An Acuity Brands Company
103-1439 17Avenue SE Calgary AB Canada T2G 1J9
tel (403) 243-8110 fax (403) 287-1281
RELAY TEST
Relay Test allows the user to open or close relays, inde-
pendent of incoming DMX levels, as a trouble-shooting
aid.
With the indicator LED lit next to RELAY TEST, press
and hold the Enter button. Dots will flash along the bot-
tom of the two-character display. Use the Up/Down but-
tons to select the relay to be tested. Press the Enter but-
ton to switch the relay state between ‘Off’ and ‘On’. A
clicking noise should also be heard.
Use the Up/Down arrow to continue through the in-
stalled relays. Press ESC to exit at any time.
DMX TERMINATION SWITCH
DMX512 requires that the final receiver in line must have
a termination resistor. If no devices or modules are con-
nected to the DMX THRU terminal, the DMX TERMI-
NATE switch should be in the ‘ON’ position. If other de-
vices or modules are connected to the DMX THRU, the
DMX TERMINATE switch should be in the ‘OFF’ position.
BY-PASS SWITCH
The By-Pass switch, located near the Power Input, closes
all relays and forces all analog outputs open (full intensi-
ty). The by-pass may be used to test all circuits without
the need for DMX input. The two-character screen will
display “bP” as the DMX Address.
THRESHOLD: SET RELAY TRIGGER THRESHOLD
The relay trigger threshold may required adjustment, due
to fixture performance or to meet energy conservation
criteria. The threshold applies to all outputs.
With the indicator LED lit next to THRESHOLD, press
and hold the Enter button. Dots will flash along the bot-
tom of the three-character display. Use the Up/Down ar-
row buttons to set a threshold. The threshold applies to
all relay outputs. Valid range is 1% through 99%, or “Lo”
which equals an 8-bit value of 001.
When the threshold is set as a percentage, hysteresis is
3, so at a threshold of 10%, the relay will close when DMX
rises through an 8-bit value of 027, and open when DMX
falls through an 8-bit value of 024.
When the threshold is set as “Lo” there is no hysteresis.
PATCH: SET DMX SOFT PATCH (cont’d)
relays and analog outputs. Once done, press ESC to exit.
When Soft Patch is used, the Start Address screen will
display three dashes. Setting a start address will clear
(over-write) a soft patch.
PRECEDENCE OF OPERATION
Input signal and triggers will take precedence, from high-
est to lowest, as follows: Relay Test; By
-Pass switch,
Aux input (shorting AUX1 to COM), DMX level.
ANSI E1.20 RDM CONFIGURATION
The SNAP interface card is an RDM responder. The fol-
lowing properties may be set remotely, with an appropri-
ate RDM controller on the DMX line: DMX Start Address
(global or per subdevice output); Device Label (global);
Subdevice Label; Threshold; Auxiliary Input (per subde-
vice).
