OPTICOM 764 User manual

OpticomGPS System
Intersection Equipment
OpticomGPS System
OpticomIR System
Model 764 Phase Selector
Installation Manual November 2012

Intersection Equipment Installation Instructions
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Table of Contents
1About This Manual........................................................................................................................... 5
1.1 Intended Use ............................................................................................................................. 5
1.2 Technical Support...................................................................................................................... 5
1.3 Safety Messages and Safety Labels.............................................................................................. 5
1.4 Safety Considerations................................................................................................................. 5
1.4.1 Personal Safety Equipment and Clothing .............................................................................. 5
1.4.2 Work Zone Traffic Control................................................................................................... 5
1.4.3 Electric Shock...................................................................................................................... 6
1.5 Disposal of Device..................................................................................................................... 6
1.6 FCC Statement ........................................................................................................................... 6
2Description...................................................................................................................................... 7
3Radio/GPS unit Installation............................................................................................................ 10
3.1 Model 1010 Radio/GPS unit mounting Location Considerations................................................ 10
3.1.1 Model 1010 Radio/GPS Unit Installation............................................................................ 14
3.1.2 Model 1012 Radio Installation........................................................................................... 16
3.1.2.1 Model 1050 Antenna mounting................................................................................... 17
3.1.2.2 Radio mounting .......................................................................................................... 18
3.1.2.3Radio/GPS Unit Cable Terminations ............................................................................ 18
4Powering the Phase Selector .......................................................................................................... 20
4.1 Powering on 120 VAC 60 Hz................................................................................................... 20
4.2 Powering on 24VDC................................................................................................................ 20
5Phase Selector Installation in Controller Cabinets with Existing Card Racks ................................... 21
5.1 Potential for Electrical Shock.................................................................................................... 23
6Phase Selector Installation in NEMA Cabinets using 760 or 1040 Card Rack .................................. 24
6.1 Model 1045B Card Rack.......................................................................................................... 27
6.1.1 Model 1045 in IR Operation.............................................................................................. 27
7Model 755 Four Channel Adapter Card and Other Model Card Racks............................................ 28
8Radio/GPS Cable Connection ........................................................................................................ 29
9Model 768 Auxiliary Interface Panel (AIP) ..................................................................................... 30
9.1 Auxiliary Interface Panel Installation......................................................................................... 31
9.2 Green Sense Wiring ................................................................................................................. 33
9.3 Confirmation Light Wiring........................................................................................................ 34
9.3.1 Confirmation Light Wiring with Load Switch Interface........................................................ 34
9.3.2 Confirmation Light Wiring with Electromechanical Relay Interface ..................................... 36
9.4 Connecting existing harnesses to the model 768 auxiliary interface panel ................................. 38
9.4.1 Existing GPS installation using model 1035 auxiliary harness ............................................. 38
9.4.2 Existing GPS installation using model 1030 auxiliary interface panel .................................. 38
9.4.3 Existing IR installation using a model 757 auxiliary harness ................................................ 38
9.4.4 Existing IR installation using a model 758 auxiliary interface panel..................................... 38
9.5 Additional Output Connections................................................................................................ 39
9.5.1 Turn Signal Dependant Operation Example........................................................................ 42
10 Infrared (IR) Operation............................................................................................................... 43
11 Phase Selector Pin Index............................................................................................................. 44
12 Communication Ports ................................................................................................................. 46
12.1 Ethernet Port ............................................................................................................................ 46
12.1.1 Ethernet indicators.......................................................................................................... 46
12.2 USB Port.................................................................................................................................. 47
12.3 RS-232 Communication Ports................................................................................................... 47

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12.3.1 RS-232 COM Port on the Rear Edge Connector............................................................... 49
12.3.2 RS-232 COM Ports on the Auxiliary Interface Panel ........................................................ 50
13 Phase Selector Indicators, Display and Switches ......................................................................... 51
13.1 Indicators................................................................................................................................. 51
13.2 Display and Switches............................................................................................................... 53
13.2.1 Manual Test Calls........................................................................................................... 54
13.2.1.1 Turn Signal Sub Menu................................................................................................. 54
13.2.2 Error listing..................................................................................................................... 56
13.2.3 Set Range....................................................................................................................... 56
13.2.4 Detector Function Test ................................................................................................... 57
13.2.5 IP Address Reset............................................................................................................. 57
13.2.6 Password Override......................................................................................................... 57
13.2.7 Erase Logs ...................................................................................................................... 57
13.2.8 Reset All Parameters to Default....................................................................................... 57
13.2.9 Standby Mode................................................................................................................ 57
14 Checkout.................................................................................................................................... 58
15 Troubleshooting.......................................................................................................................... 58
15.1 Fuse Locations ......................................................................................................................... 58
15.2 Troubleshooting Tables............................................................................................................ 59
16 Maintenance............................................................................................................................... 63
17 Setup and Testing ....................................................................................................................... 63
Appendix A: Opticom Output Connection Worksheet (High Priority only).......................................... 64
Appendix A1: Opticom Output Connection Worksheet (High & Low Priority)..................................... 65
Appendix B: Driving a Relay from a Phase Selector ............................................................................. 66
Appendix C Gate Opener Card Rack .................................................................................................... 68
Gate Opener Card Rack Installation................................................................................................... 69
Gate Opener Relay Outputs ........................................................................................................... 71

Intersection Equipment Installation Instructions
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1About This Manual
Please read, understand, and follow all safety information contained in these instructions before
installing the system equipment. Save this installation manual and keep it near the equipment.
If you are unsure about any part of this installation or of the potential hazards discussed, please contact your
supervisor immediately.
1.1 Intended Use
The system is intended to assist authorized priority vehicles through signalized intersections by providing
temporary right-of-way through vehicle operator interface to the system and through the use of common
traffic controller functions. GTT has not evaluated this product for use in any other application.
1.2 Technical Support
If you have questions about the system, its use, or operation, please contact your dealer or call the GTT
Technical Service department at 1-800-258-4610.
1.3 Safety Messages and Safety Labels
We include safety messages and labels in this manual to help you protect your safety and the safety of
others.
Please read these messages before proceeding with the installation.
1.4 Safety Considerations
Please consider the following safety issues before beginning the installation of the Opticom™ System
intersection equipment.
Although we have compiled this list of common safety considerations, it should not be considered as
complete. It is not intended to take the place of your good judgment, training, and experience.
1.4.1 Personal Safety Equipment and Clothing
Personal safety equipment and clothing including high visibility vests, hard hats, gloves, electrical shock or
electrocution protection clothing and equipment, safety shoes, safety glasses, face shields, goggles, and
hearing protection devices are just some of the items available to you.
Choose the right equipment for the job. If you are unsure of which safety equipment is recommended or
appropriate for the job, ask your supervisor or foreman.
1.4.2 Work Zone Traffic Control
Proper control of vehicle traffic is important during many procedures. When you switch the traffic
controller to and from the flash mode we recommend that you have people trained in manual traffic
control, such as police officers, assist you.
When you install devices that require you to position vehicles, equipment, or people in or
near the roadway, it is important that you use appropriate work zone traffic control techniques,
equipment, and procedures. Sometimes you may have to work on or near the roadway and these same
techniques, equipment, and procedures should be used for your protection.
If you are unsure of which procedures are recommended or appropriate for the job, ask your supervisor
or foreman.

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1.4.3 Electric Shock
The possibility of electrical shock exists when installing intersection equipment, since connections must be
made to open terminals within the traffic control cabinet which may have 120 VAC present. Follow proper
work procedures and read and understand the safety messages in this manual.
As a trained installer of electrical equipment you are aware of the dangers associated with installation of
electrical devices. Always be sure that the power to the equipment, and all associated equipment, is turned
off before beginning any procedure. Use the equipment, techniques, and procedures that you learned
during your training or apprenticeship or other electrical industry recognized safety procedures.
If you are unsure of which techniques, procedures, and protective equipment are recommended or
appropriate for the job, ask your supervisor or foreman.
1.5 Disposal of Device
Please dispose of the device in accordance with all local, state, and federal laws and regulations.
1.6 FCC Statement
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to
part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful
interferences when the equipment is operated in a commercial environment. This equipment generates,
uses and can radiate radio frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications. If operation of this
equipment in a residential area causes harmful interference, the user is required to correct the interference
at their own expense.
*The method of using the components of the Opticom GPS system may be covered by one or more of US Patent
Numbers 5539398, 5926113, 5986575, 6243026.
Figure 1-1 FCC label Locations

Intersection Equipment Installation Instructions
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2Description
This section provides a general description of the Opticom™ GPS system and a detailed description of the
intersection equipment.
Opticom GPS System
The Opticom GPS system assists authorized priority vehicles through signalized intersections by
providing temporary right-of-way through the use of common traffic controller functions.
The Opticom GPS system consists of the following matched components:
Vehicle Equipment Components
•Radio/GPS unit containing a GPS receiver and a 2.4 GHz transceiver
•Radio/GPS antenna
•Vehicle Control unit
Intersection Equipment Components
•A traffic pole mounted Radio/GPS unit containing a GPS receiver with antenna and a 2.4 GHz
transceiver with antenna (Model 1010)
•Or a Traffic Cabinet mounted Radio/GPS unit containing a GPS receiver and a 2.4 GHz transceiver
(Model 1012) with a Radio/GPS antenna (Model 1050)
•Phase Selector (Model 764)
•Card Rack/Input File (Model 760)
•Auxiliary Interface Panel (Model 768)
Operation Description
The vehicle equipment is mounted on the priority vehicle. Its GPS receiver acquires position information
from the constellation of GPS satellites. This information is used to compute the location, speed, and
heading of the vehicle. This information, along with a priority request, ID information and the state of
the vehicles turn signal, is broadcast using the 2.4 GHz transceiver.
The intersection equipment receives the radio transmission from the vehicle equipment. The intersection
equipment then compares the information being received from the vehicle to the parameters stored in the
intersection equipment’s memory. If the vehicle is heading toward the intersection in a predefined
approach corridor, is requesting preemption and has met all other programmed parameters, the
corresponding phase selector output is activated. This output is connected to the traffic controller
preemption input. When activated, the controller cycles to grant a green light to the requesting vehicle or
holds the green allowing the vehicle to pass through the intersection.
The card rack/input file provides the power and logic wiring for the phase selector, which plugs directly
into a slot in the unit.
The auxiliary interface panel provides additional connection for monitoring green phases and also provides
additional outputs.

Intersection Equipment Installation Instructions
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Intersection Equipment Details
The Opticom™ GPS System intersection equipment has two styles of Radio/GPS units available.
The first is the Model 1010, which is a compact, weather-resistant, Radio/GPS unit containing a GPS receiver
with antenna and a 2.4 GHz transceiver with antenna. This model is typically mounted on a traffic pole near
the traffic cabinet.
The second is the Model 1012 Radio/GPS unit, which contains a GPS receiver, a 2.4 GHz transceiver and a
separate Radio/GPS antenna. This model is mounted in the traffic cabinet with the antenna mounted on the
roof of the cabinet.
Both models of the Radio/GPS unit are connected to a phase selector via an 11-conductor radio/GPS cable.
The phase selector can be installed directly into an input file of a traffic controller equipped with priority
phase selection software. The phase selector can also be installed directly into virtually any other traffic
controller equipped with priority phase selection inputs and related software.
When input file space is not available in the traffic cabinet, a card rack is required.
The phase selector processes the signal from the radio/GPS unit and activates outputs which are connected
to the preemption inputs on the traffic controller. There are four channel outputs accessible on the rear
connector of the phase selector and up to 12 additional channel outputs accessible on the front of the phase
selector.
Each channel output delivers a constant output for high priority activation, and a pulsed output for low
priority activation. A high priority signal received on a channel will override any low priority activation. In
certain modes of operation, outputs may be activated that are dependent on the state of the requesting
vehicle’s turn signal. Another mode provides separate outputs for high priority and low priority. The use of
an auxiliary interface panel is required to access these additional modes and outputs.
Figure 2-1 shows the intersection components including the phase selector, card rack, input file, auxiliary
interface panel, and the wiring harnesses and cables. The 9-pin harness connects the card rack to the traffic
controller. Various communication ports are available to connect the phase selector to a PC or to remote
communication equipment. Additional communication connections are available on the auxiliary interface
panel. The auxiliary interface panel cable connects the phase selector to the auxiliary interface panel. The
radio/GPS cable connects the phase selector to the intersection radio/GPS unit.
NOTE: Illustrations and connections to the traffic controller may not be exactly as shown or described in
this manual. Refer to the controller wiring diagram for correct terminal connections.

Intersection Equipment Installation Instructions
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Figure 2-1 Intersection Components

Intersection Equipment Installation Instructions
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3Radio/GPS unit Installation
This section describes the installation of the radio/GPS unit. There are two models of the radio/GPS unit.
See section 3.2 for details on installing the Model 1012 Radio/GPS unit.
3.1 Model 1010 Radio/GPS unit mounting Location Considerations
Read and understand the following precautionary paragraphs before starting the installation.
•The Model 1010 radio/GPS unit should be mounted in a location that has an unobstructed view of all
approaches out to a distance of 2500 feet (762m).
•Blockage of approaches by things such as bridges, buildings, walkways, and trees should be avoided.
•The Model 1010 radio/GPS unit is usually mounted to the mast arm or span wire pole nearest the traffic
controller cabinet. If an appropriate mounting location on a mast arm or span wire pole is not available,
you can mount the unit to a span wire. Try to use a signal head or sign mount to minimize sway.
•The Model 1010 radio/GPS unit should be mounted level and as high as possible. Do not mount the
unit upside down.
•The Model 1010 radio/GPS unit should have an unobstructed view of at least 50% of the sky.
•The mounting location should be such that the cable run from the radio/GPS unit to the phase selector
(located in the traffic controller cabinet) is no more than 250 feet (76m).
•The radio/GPS cable may be run through conduit or attached to a messenger wire. The cable should
not be suspended unsupported.
•The Model 1010 radio/GPS unit should be oriented such that the cable retainer is facing an area from
which vehicles will NOT be approaching. See Figure 3-1.
•Do not paint the Model 1010 radio/GPS unit cover. Metals or metal oxides in the paint may interfere with
GPS reception and/or radio reception/transmission.
•Do not modify the radio/GPS unit circuitry. There are no user-serviceable parts inside.
IMPORTANT NOTE
Modifying the radio/GPS unit may seriously
damage the equipment and void the warranty.
Do not attempt to modify the radio/GPS
circuitry in any way. Modifying the radio and/or
antenna in any way may cause the radio to
violate FCC/IC requirements.
REMARQUE IMPORTANTE
La modification du système radio/GPS risque
d’endommager sérieusement le matériel et
d’annuler la garantie. Ne pas tenter de modifier
les circuits du système radio/GPS de quelque
façon que ce soit. En modifiant le système radio
et/ou l’antenne de quelque façon que ce soit, la
radio risque de ne plus répondre aux exigences
de la FCC/IC.

Intersection Equipment Installation Instructions
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Figure 3-1. Radio Signal Pattern
1. Cable retainer 3. GPS antenna
2. Intersection radio/GPS unit 4. Radio antenna

Intersection Equipment Installation Instructions
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Figures 3-2 through 3-4 show typical installations of the Opticom™ GPS System Intersection Model 1010
Radio/GPS Units.
Figure 3-2 shows a Model 1010 radio/GPS unit installed on a mast arm. The radio/GPS unit should be
mounted level and higher than the mast arm pole, if possible. Place the unit as far out over the intersection
as possible and still provide good coverage down the cross streets.
Figure 3-2. Mast Arm Installation Model 1010

Intersection Equipment Installation Instructions
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Figure 3-3 shows a radio/GPS unit installed on a span wire pole. The radio/GPS unit should be mounted
level and extended about 3 feet (1m) away from the pole.
Figure 3-3. Span Wire Pole Installation Model 1010
Figure 3-4 shows a Model 1010 radio/GPS unit installed on a span wire. The radio/GPS unit should be
mounted level and higher than the upper span wire. Mount the unit so that it is as rigid and stable as
possible.
Figure 3-4. Span Wire Installation Model 1010
Note: This method should only be used if other methods are not available.

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3.1.1 Model 1010 Radio/GPS Unit Installation
NOTE:
The mounting location must provide a 3/4-inch NPT internal thread mount. Mounting brackets, nipples,
pipe and lock nuts are not included.
Choose the mounting location. This is usually the mast arm or span wire pole nearest the traffic controller
cabinet. The cable run from the radio/GPS unit to the phase selector (located in the traffic controller
cabinet) should not exceed 250 feet (76 m).
Screw a nipple (or pipe) into the base of the radio/GPS unit. Do not tighten the locknuts yet.
Loosen the two cover screws and remove the wiring cover.
Route the radio/GPS cable from the radio mounting location to the traffic controller cabinet. The cable can
enter the radio/GPS unit either through the cable retainer in the wiring cover or through the nipple/pipe at
the base of the unit. See Figure 3-5. In either case, the wiring connections are the same.
For purposes of discussion, these instructions assume the cable enters the radio/GPS unit through the cable
retainer.
Figure 3-5. Model 1010 Radio/GPS Unit Mounting
1. Intersection radio/GPS unit 5. Locknut (2)
2. Cable retainer 6. 3/4-inch NPT mount
3. Radio/GPS cable 7. Wiring cover
4. Nipple/Pipe 8. Cover screws (2)

Intersection Equipment Installation Instructions
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1. Disassemble the weather-tight cable retainer and route the cable through the compression nut,
plastic washer, rubber bushing, and into the cover as shown in Figure 3-6. Leave approximately 4
inches (10 cm) of cable inside the cover and tighten the compression nut to secure the cable.
2. Strip approximately 3 inches (8 cm) of the outer jacket from the end of the cable. Be careful not to
cut the wires inside. Make sure the outer jacket is held in place by the rubber bushing.
3. Strip 1/4 in (6 mm) of insulation from each wire.
NOTE:
It is very important to not strip too much insulation, as it may lead to short circuits, or too little
insulation, as it may prevent the wire from making good contact.
4. Place each wire into the appropriate hole in the 11-pin terminal block and tighten the screw to
secure the wire. The label on the terminal block shows the color of each wire. Table 3-1 also
shows the terminal block pin number, wire color, and function of each wire.
5. The terminal block may be removed to allow easier connections.
6. Replace the wiring cover and tighten the screws.
7. Orient the radio/GPS unit so that the cable retainer is facing an area from which vehicles will NOT
be approaching.
8. Tighten the locknuts on the nipple/pipe to secure the radio/GPS unit so it will not move.
9. Finish routing and securing the cable. Use cable ties as required. Keep the cable lower than the
entry point or use a drip loop.
Figure 3-6. Model 1010 Radio/GPS Cable Installation
1. Intersection radio/GPS unit 5. Rubber bushing
2. 11-pin terminal block 6. Plastic washer
3. Wiring cover 7. Compression nut
4. Cable retainer 8. Radio/GPS cable

Intersection Equipment Installation Instructions
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3.1.2 Model 1012 Radio Installation
This section describes how to install the Model 1012 version of the Opticom™ GPS radio.
Important Note:
The Model 1012 radio is designed to be installed directly inside of the traffic cabinet with the antenna
mounted on the roof of the cabinet. This style radio should only be installed if it is determined from a site
survey that the location will not overly degrade GPS reception and or radio transmission and reception.
Since the antenna is mounted at the height of the top of the traffic cabinet rather than at the height of the
traffic signals, the antenna’s view of the sky (for GPS reception) may be less. Also by mounting the
antenna lower, obstacles such as buildings, trees etc., will likely reduce radio range. If it is determined by
survey of the intersection that these reductions will still allow the Opticom GPS system to operate
satisfactorily, then the Model 1012 may be installed. If not, it is recommended that a Model 1010 radio
be used.
If any of the following conditions are present, the model 1012 is not recommended:
•Cabinet located under bridge, in another structure etc.
•Downtown areas
•Trees over the cabinet significantly obstructing the view of the sky
•Buildings close to the cabinet significantly obstructing the view of the sky
•View of approaches obstructed by buildings, signs etc.
•Nearby bridges blocking view of approach
•WAAS satellite/s not in view
•High speed roads that need maximum range
•Intersections with long ped clear, min greens etc.
•Pole mounted cabinets
•Where white colored dome on cabinet is not desired
•If pole mounted Model 1010 significantly improves performance
•Vandalism concerns
IMPORTANT NOTE REMARQUE IMPORTANTE
Modifying the radio/GPS unit may seriously
damage the equipment and void the warranty.
Do not attempt to modify the radio/GPS
circuitry in any way. Modifying the radio and/or
antenna in any way may cause the radio to
violate FCC/IC requirements.
La modification du système radio/GPS risque
d’endommager sérieusement le matériel et
d’annuler la garantie. Ne pas tenter de modifier
les circuits du système radio/GPS de quelque
façon que ce soit. En modifiant le système radio
et/ou l’antenne de quelque façon que ce soit, la
radio risque de ne plus répondre aux exigences
de la FCC/IC.

Intersection Equipment Installation Instructions
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3.1.2.1 Model 1050 Antenna mounting
NOTES:
•Do not paint the radio/GPS antenna cover. Metals or metal oxides in the paint may interfere with
GPS reception and/or radio reception and transmission.
•Be sure to capture metal shavings when drilling a hole in the cabinet.
Antenna mounting factors:
•The antenna must be mounted on the top of the cabinet so that the GPS antenna has a good view of
the sky.
•To minimize possible vandalism, mount it in a location that is the least visible.
1. Remove the nut and washer from the Radio/GPS antenna.
2. Drill a 5/8 to 3/4 inch (14 mm to 19 mm) hole in the top of the cabinet. See Figure 5-7.
3. Route the cables through the hole and replace the lock washer and nut.
4. Tighten the nut with a 15/16 inch or 24 mm wrench.
5. Note: Do not over tighten the nut or the antenna may be damaged. 5 ft/lbs (73n/m) is the recommended
torque.
6. Apply a sealant such as silicone RTV (not provided) around the antenna to provide a good seal with the
antenna’s built-in gasket.
Figure 3-7. Mounting Model 1050 Radio/GPS Antenna on Cabinet Roof
1. Radio/GPS antenna 4. Radio and GPS antenna cables
2. Traffic cabinet roof 5. 5/8 to 3/4-inch mounting hole
3. Antenna nut 6. Antenna lock washer

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3.1.2.2 Radio mounting
The Model 1012 radio may be placed on a shelf in the cabinet or it may be mounted using the included
self-tapping screws.
Figure 3-8. Mounting Model 1012 Radio/GPS Unit
3.1.2.3 Radio/GPS Unit Cable Terminations
1. Route the cables from the radio/GPS antenna through the cabinet to the radio/GPS unit location. Coil up
any excess cable.
NOTE:
•When coiling excess cable do not create any sharp bends in the cable or the cable may be
damaged.
2. Connect the cable labeled GPS to the GPS connector on the radio/GPS unit. Connect the other cable to
the Radio connector. Tighten the connectors using a 5/16 inch wrench (an 8 mm wrench may also be
used).
3. Plug the 15 pin connector of the radio/GPS cable (black cable) into the P1 connector of the radio/GPS
unit and tighten the screws.
4. Route the cable to the location where the phase selector will be installed.
5. Skip to Section 5.5.2 for details on connecting the radio/GPS cable.
NOTES:
•The connectors are keyed and cannot be connected to the wrong connector.
•To avoid damage to the equipment always connect the GPS and Radio connectors before
connecting the radio/GPS cable. Plug the cable into the phase selector last.
•The radio/GPS unit is not watertight; therefore it must be mounted inside the cabinet
compartment.
•Never operate the equipment with the antenna cables disconnected or the equipment may be
damaged.

Intersection Equipment Installation Instructions
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Figure 3-9. Radio/GPS Cable Connector Pin Configuration
Pin Wire Color Function
1 Yellow Radio transmit (+)
2 Yellow Black Radio transmit (–)
4 Blue Radio receive (+)
5 Blue White Radio receive (–)
7 Orange Radio clock (+)
8 Orange Green Radio clock (–)
9 Brown GPS power
11 Brown White Common
12 Violet White Common
13 Bare Shield drain wire
15 Violet Radio power
Table 3-1. Radio/GPS Cable Connector Pin Index
Figure 3-10. Radio/GPS Installation Cable

Intersection Equipment Installation Instructions
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4Powering the Phase Selector
The phase selector operates on either 120VAC 60Hz or 24 VDC. The phase selector then powers the rest of
the Opticom intersection equipment. Powering the phase selector requires one of the following inputs:
Pin
Input
A
DC-
B
DC+ (24 VDC)
L
AC Ground
M
AC Neutral (AC-)
N
AC Hot (AC+)
Table 4-1 Phase Selector Power Input
If the phase selector detects both 24 VDC and 120 VAC, it will use 120 VAC
See figure 5-20 for locations of pins A, B, L, M, N
Current Draw:
•When powered by 120VAC 60Hz, the Model 764 phase selector current draw is 80 mA
oAdd 100 mA for the radio/GPS unit
oAdd 15 mA for each 711 detector
oAdd 30 mA for each 721or 722 detector
oAdd 15 mA for the 768 AIP
•When powered by 24 VDC, the Model 764 phase selector current draw is 110 mA
oAdd 500 mA for the radio/GPS unit
oAdd 15 mA for each 711 detector
oAdd 30 mA for each 721or 722 detector
oAdd 40 mA for the 768 AIP
4.1 Powering on 120 VAC 60 Hz
Plug the phase selector into a card rack or slot that will provide 120 VAC on pins M and N.
Voltage range is 89-135 VAC 57-63Hz.
4.2 Powering on 24VDC
Plug the phase selector into a card rack or slot that will provide 24 VDC on pins A and B.
Voltage range is 22-26 VDC.
It is also possible to power the phase selector on 24 VDC by providing power through the front DC
connector. This connector is only used to provide power if neither 120 VAC nor 24 VDC is available on the
card edge connector. The label on the removable 24 VDC connector shows the proper polarity. This
connector is an input only it does not provide a 24VDC output.