INSTRUCTION SHEET
OPR-1 OPTICAL FIBER PULSE RECEIVER
Z1
K1
L1
L2
OUTPUT #1
POWER
SUPPLY
INPUT
MOUNTING POSITION - The OPR-1 MUST be mounted in a vertical position, as shown above.
POWER INPUT - The OPR-1 can be powered by 120VAC or 208 to 277VAC. Connect the GND terminal to
the electrical system ground. Connect the Neutral lead to the NEU terminal. Connect the L1 terminal to the
120VAC "Hot" lead for 120VAC operation. Connect the L2 terminal to the 208, 240, or 277 "Hot" lead. Do
not use both L1 and L2. Exercise caution when board is energized. There is voltage present at L1
and L2 when powered.
UP
RELAY OUTPUTS - The OPR-1 has one KYZ pulse output that can be used as either 2-Wire (Form A) or 3-
Wire (Form C). It is K1,Y1, & Z1. For 2-Wire mode, the K & Y or the K & Z terminals may be used. For 3-
Wire mode, all three wires must be used. Relay outputs are electrical isolated, dry-contact type with NO
sourced voltage. The user must supply their own wetting voltage.
GND
Y1
Form C
FUSE - The power supply fuse (F1) supplied on the OPR-1 is 1/2 Amp, type 3AG. Because the power
supply voltage terminals are configured as 120V (L1) and 208-277V (L2) the fuse is located in the neutral
power supply lead. Voltage may be present on the L1 and L2 terminals and circuitry on the board when the
fuse is blown. Care should be exercised to disconnect all power to the board at the circuit breaker before
servicing the system.
SOLID STATE INSTRUMENTS
a division of Brayden Automation Corp.
6230 Aviation Circle, Loveland Colorado 80538
Phone: (970)461-9600 Fax: (970)461-9605
E-mail: support@solidstateinstruments.com
Revision: 2/24/2007 P/N: 04771-97006A
NEU
120VAC
208-277
VAC
Neutral
Ground
GROUND - The GND terminal on the OPR-1 is a common ground with the chassis and is connected to the
Chassis by means of the middle right-hand mounting screw. Therefore, if necessary, the electrical system
ground can be connected to the OPR's chassis. Do not tie the Ground and Neutral terminals together.
Relay #1
F1
OPR-1
TR
"ST" Fiber Optic
Cable Connectors
