Safe Fleet PSA User manual

© Safe Fleet | 2019 | All rights reserved | Part #: 700-1144 R3
Installation Guide
PSA
Predictive Stop Arm™

© Safe Fleet | 2019 | All rights reserved | Part #: 700-1144 R3
PSA Installation Guide
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
About this guide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
About PSA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
How does it work?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
What does the PSA system include?.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
System Components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
System Diagram.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Preparing for Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
System Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Harness Routing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Wire looms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Operator Safety Warning Sticker. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Installing Components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Mounting the SAM Controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Mounting the GPS Receiver.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Mounting the Ground Loop Isolator.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Mounting the SAM Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Mounting Speaker Horns.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Mounting Radar Modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Wiring Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Installing Harnesses. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
SAM I/O Harness. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
GPS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Table of Contents

© Safe Fleet | 2019 | All rights reserved | Part #: 700-1144 R3
PSA Installation Guide
SAM Power and Splitter Harnesses.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Audio Harnesses.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Radar I/O Harnesses. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Appendix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Sharing GPS Data between PSA and Right-hand Danger Zone (RHDZ). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Support Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Contact customer service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Product information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Table of Contents (continued)

© Safe Fleet | 2019 | All rights reserved | Part #: 700-1144 R3
PSA Installation Guide
p. 4
Introduction
Introduction
About this guide
This guide covers installation procedures for the Predictive Stop Arm™
personnel only. For more information, contact Technical Support (see the back of this guide for details).
About PSA
PSA is a radar-based safety system designed for school buses. Its primary function is to alert the driver and students

How does it work?
The PSA system uses 2 radar modules (one forward and one rear-facing) to monitor the distance and speed of approaching

appropriate visual alerts to the driver, and two exterior horn speakers play sounds to alert pupils of potential danger.
What does the PSA system include?
The PSA system has the following primary components:
• 
• Radar system monitoring the area around the vehicle
• 
• 
• GPS receiver providing location data�
� Installations that include both PSA and the Safe Fleet Right-hand Danger Zone (RHDZ) system share location data from a
single GPS receiver. For more information, see the "Appendix" on page 19. RHDZ documentation is available on the Safe
Fleet Community.
 NOTE: Initial conguration
After installing components, you must set up the system to operate correctly.
For more information, see the PSA User Guide (part #700-1176).

© Safe Fleet | 2019 | All rights reserved | Part #: 700-1144 R3
PSA Installation Guide
p. 5
System Components
System Components
The PSA installation kit ships with the following components:
1x SAM Controller (032-1034);
ships w/ 4x #10 x 3/4" self-drilling
screws (600-0038)
1x SAM Power Harness Kit -
20ft/6.1m; ships w/10A and 1A
fuses/holders
1x SAM I/O harness (060-1117)
15 ft/4.6m
1x FORWARD Radar (080-1063)
and 1x REAR Radar (080-1073);
each radar ships w/3 x #10 x 1.25"
Phillips screws (600-0098), and
drilling template (700-1155)
2x Radar I/O Harness (060-1128)
20 ft/6.1m (5-wire I/O and DB9 legs),
15 ft/4.6m (2-wire power leg)
1x SAM Display (080-1076); ships
w/velcro mounting strip
2x Exterior Speakers (085-1087);
ships w/bracket, drilling template
(700-1145) and 4x #10 x 3/4” self-
drilling screws (600-0038)
1x Audio Amplier (085-1089)
ships w/4 x machine screws and
lockwashers, speaker harness, and
24.5ft./7.5m extension (060-1155)
1x Ground Loop Isolator (085-
1093) ships w/4x #8 x 3/4" Phillips
screws (600-0045)
1x GPS Receiver (080-1082)
magnetic mount
1x Audio Connector (085-1096)
6ft/1.8m, SAM AV to Ground Loop
Isolator
1x Amplier Power Splitter
(060-1166) 6ft/1.8m, & Harness


© Safe Fleet | 2019 | All rights reserved | Part #: 700-1144 R3
PSA Installation Guide
p. 6
System Diagram
System Diagram
SPEAKER
FIREWALL
SPEAKER
BUS
POWER
DISPLAY
ISOLATOR
AMPLIFIER
BUS
SIGNAL
WIRES
RECORDER
RADAR
RADAR
SAM
GPS
20ft/6.1m 15ft/4.6m
15ft/4.6m
20ft/6.1m
15ft/4.6m
11in/.3m
6ft/1.8m
24.5ft/
7.5m
6ft/1.8m
15ft/4.6m
4.9ft/
1.5m
Mounting Options:
• Front bulkhead (above
windshield) or top
conduit
• Driver’s console/switch
panel (left of driver) or
side compartment
• Conduit/compartment
beneath A-pillar
Speaker Mounting Options
• Engine compartment (on rewall or behind grille)
• Frame-mounted
• In cavity under bus oor, behind entrance door
Mounting Options
• A-pillar
• Above or to the left of driver's
console/switch panel
Mounting Options�
• A-pillar
• Dashboard
� GPS may be provided by an external source
Installations that include both PSA and the Safe Fleet Right-hand Danger Zone (RHDZ) system share location data from a single GPS receiver.
For more information, see the "Appendix" on page 19. RHDZ documentation is available on the Safe Fleet Community.
Radar Modules
• Driver's side bus panel, minimum 10ft. (3.05m)
from the front bumper - typically beneath the
StopArm

© Safe Fleet | 2019 | All rights reserved | Part #: 700-1144 R3
PSA Installation Guide
p. 7
Preparing for Installation
Preparing for Installation
PSA components mount in various locations inside and outside the bus (consult the "System Diagram" on page 6). Use
the following information to help avoid mounting problems and harness-routing obstacles.
 IMPORTANT: Vehicle-specic planning
Important aspects of a PSA installation depend on implementation details, including:
• 
• Vehicle mechanical/electrical design
• Pre-existing equipment
Before proceeding, carefully consider the following guidelines and recommendations, and discuss component
mounting locations with the customer.
System Mounting
• Allow physical space around components and account for bulky I/O harnesses, wiring, fuse holders, and connectors
• Do not block operator sight lines (windows/mirrors)
"Installing Components" on page 9).
Harness Routing
After determining component locations, plan harness and cable routes (see the "System Diagram" on page 6 and the
"Wiring Diagram" on page 13):
• Consider routing distances and logistics, including barriers/bottlenecks.
• 
connections and fuse placement to limit the number and bulkiness of runs, particularly where space is limited.
• Manage harnesses and channel wiring to keep runs tidy and avoid cable damage.
 NOTE: Component mounting
Select the SAM controller location rst.
Important cabling decisions and component locations depend on where the SAM controller is mounted. Determine the
SAM location before planning for other components.
Place the SAM Controller, Amplier, and Ground Loop Isolator in proximity.

(for details, see "Audio Harnesses" on page 17).
Radar modules mount on the driver’s side exterior panel (min. 10ft. from front bumper, typically under the stop arm).

© Safe Fleet | 2019 | All rights reserved | Part #: 700-1144 R3
PSA Installation Guide
p. 8
Preparing for Installation
 NOTE: Radar I/O harness labels
Before proceeding, lay out the 2 radar I/O harnesses
separately. On one harness, attach 3 supplied
"FORWARD" labels, to the legs:
• Aviation connector
• DB9 connector
• 5-wire I/O leg
The 2-wire power connection does not require labeling.
Use 3 supplied "REAR" labels to repeat the process for
the other harness. You'll need the labels to help identify
proper connections during system installation and

Wire looms

• Label wires/connectors
• Use appropriate conduit and/or bind with tape or zip ties
Attach "FORWARD"/"REAR" Labels:
Aviation connector
(radar end)
5 wires
(SAM I/O leg)
DB9 connector
(serial leg to SAM RS232)
Operator Safety Warning Sticker
The PSA system ships with an adhesive label displaying important
operator safety warnings.
Post the sticker in proximity to the vehicle operator – for example on the
driver's side console or front bulkhead/cabinet.
WARNING:
SEVERE INJURY OR DEATH can result if you fail to comply with the
following:
• ALWAYS ensure Predictive Stop Arm system (PSA) is functioning
properly before operating the bus (see the 3-Step Operator Checklist for
test procedure).
• ALWAYS pay attention to PSA audio and visual alarms and take
appropriate action.
• ALWAYS keep a proper lookout for pedestrians and other objects.
• ALWAYS follow all laws, regulations and rules for proper bus operation.
• ALWAYS keep all PSA equipment clean and free of debris and ensure
that your view of the PSA Display Module is unobstructed.
Radar I/O
An I/O harness (060-1128) runs from each radar module on the side of the bus, and splits into 3 legs:
• The power leg (2 wires) is 15ft./4.6m.
• 
The serial leg is 20ft./6.1m with two DB9 connectors.

more information, see "Radar I/O Harnesses" on page 18.

© Safe Fleet | 2019 | All rights reserved | Part #: 700-1144 R3
PSA Installation Guide
p. 9
Installing Components
Mounting the SAM Controller
1. Select a location according to the requirements in "System
Mounting" on page 7. In addition:
Installing Components
 TIP: Access to the RS-232 serial port
Each radar I/O harness serial (DB9) leg must be
temporarily connected to the SAM RS-232 port for PSA
"Radar I/O Harnesses" on
page 18).
• 
connections (see the "Wiring Diagram" on page 13).
• Vertical, horizontal, and hang-mounting are all acceptable.
• Do not orient the unit with the SD card slot facing downward.
• Do not expose the SAM to moisture.
• Do not mount the SAM in a closed-in area or restrict ventilation
in any way. The SAM requires air circulation to maintain
optimum operating temperature and provide best performance.
2. Secure the SAM Controller to the mounting surface with the 4
supplied self-drilling screws.
Mounting the GPS Receiver
Top side up
(toward the sky)
 TIP: Satellite reception
For best results, place the GPS close to the windishield
edge and ensure the top side faces up, toward the sky.
SD card slot
RS-232 port
 NOTE: GPS may be provided by an external source
Installations that include both PSA and the Safe Fleet Right-hand Danger Zone (RHDZ) system share location data from
a single GPS receiver. For more information, see the "Appendix" on page 19.
• The back of the GPS has 2 magnetic strips. Attach the unit to a
ferrous metal surface.
• Select a location allowing the cable (4.9ft/1.5m) to reach a USB port
on the SAM controller.

© Safe Fleet | 2019 | All rights reserved | Part #: 700-1144 R3
PSA Installation Guide
p. 10
Installing Components
Mounting the Audio Amplier
1. Select a location according to the requirements in "System
Mounting" on page 7. In addition:
• 
• 
AC blower
2. Remove the 4 soft washers from the supplied strip and apply the

mount points.
3. 
screws/lockwashers.
Soft washers
Mount points
Mounting the Ground Loop Isolator
1. Select a location according to the requirements in "System
Mounting" on page 7. In addition:
• Do not expose the isolator to moisture
• Install the isolator away from electrical circuits
2. Secure the isolator to the mounting surface with the 4 supplied

Mounting the SAM Display
1. Select a location according to the requirements in "System
Mounting" on page 7. In addition:
• Choose a prominent location within the operator's peripheral
vision, preferably at eye-level: we recommend the A-pillar (lined-
up with the bottom half of the side mirror) or just above the
driver's console.
• 
2. Remove backing from the 2-sided tape on the rear of the display.
3. With the car image facing you, and the Safe Fleet logo toward the
ground, press the display against the mounting surface until it
sticks.
WARNING
DO NOT BLOCK OPERATOR SIGHT LINES.

© Safe Fleet | 2019 | All rights reserved | Part #: 700-1144 R3
PSA Installation Guide
p. 11
Installing Components
Mounting Speaker Horns
1. Select locations according to the requirements in "System
Mounting" on page 7. Place speakers so sound projects out,
toward students exiting the bus. For example:
• in the engine compartment - on the radiator frame, or just inside
the grille (mount as close as possible to openings)
• 
• 
2. Use the supplied drilling template (700-1145) to mark the 4 screw
holes on the mounting surface.
3. Drill the screw holes, then mount the bracket to the surface using

4. Place the speaker in the bracket so the holes line up, and insert the
2 bracket screws. Use the supplied washers, and thread the nuts
onto the screws.
5. If required, pivot the speaker horn toward an opening, then tighten
the speaker bracket assembly.
 TIP: Avoid exterior mounting locations
To help prevent damage to speakers, we recommend against
mounting horns on exterior bus panels.
Mounting bracket
Center Cone
Drill Drainage Hole at
Cone's Lowest Point
 NOTE: Water drainage
If the speaker is mounted low on the vehicle with the center
cone facing down, drill a hole to allow any accumulated
water to drain:
• 
• The drainage hole is not required if the cone points
upward or sideways.

© Safe Fleet | 2019 | All rights reserved | Part #: 700-1144 R3
PSA Installation Guide
p. 12
Installing Components
Mounting Radar Modules
 IMPORTANT: Radar module placement
Mount radar modules a minimum of 10ft. (3.05m) from the
front bumper.
1. Radar modules are labeled FORWARD and REAR, and mount on the
exterior bus panel, typically beneath the stop arm:
• 
into the vehicle.
• Attach a supplied forward/rear label near the connector on each
radar pigtail.
2. Using the supplied drilling template:
a. 
b. 
mounting screws.
 NOTE: Radar drilling template
The template image shown on the right is not to scale. The
actual template is included with the installation kit.
Front of bus
FORWARD module REAR module
Cable hole
Pilot holes
3. Run the 8-pin aviation connectors from radar module pigtails
through the panel cable holes, and thread into the forward and rear
radar I/O harnesses.
4. 
module to the panel.
• 
the panel surface, with the round rubber grommet inside the
cable hole.
• We recommend caulking around the edges of the radar module
base.
 TIP: Radar I/O harness routing
Before connecting radar pigtails to I/O harnesses and
mounting the modules, ensure you know how cables will
route from inside the bus and out to the radar modules.
For more information see "Harness Routing" on page 7.
Min. 10 ft. (3.05m) Radar modules -
mounting location

© Safe Fleet | 2019 | All rights reserved | Part #: 700-1144 R3
PSA Installation Guide
p. 13
Wiring Diagram
SPEAKER POWER
BATTERY
5 A
5 A
1 A
10 A
To battery (+)
To battery (-)To battery (-)
To battery (+)
To ignition
DISPLAY
GPS*
RADAR -
FORWARD
(RF)
RADAR -
REAR
(RR)
ISOLATOR
SAM
AMPLIFIER
TO BUS
SIGNAL
WIRES
VIOLATION
RECORDER
ALARM
POWER SIGNALS
LAN
A/V
RS-232
SAM input 1 (brown) to amber flasher
To SAM serial connector for configuration only
To SAM serial connector for configuration only
SAM input 2 (white/green) to red flasher/stop arm
SAM input 3 (green)
SL (black) Extension (black) negative (-) (black with stripe)
SR (black) Extension (black) negative (-) (green with stripe)
Red
Yellow
Black
SL (red) Extension (red) positive (+) (black)
SR (red) Extension (red) positive (+) (green)
SAM input 4 (yellow) RF Alarm#2/Warning (grey)
SAM input 5 (grey) RF Alarm#3/Alert (brown)
RR Alarm#2/Warning (grey)
Radar power
harness (black)
to battery (-)
Radar power
harness (yellow)
to battery (+)
RR black wire
SAM ground (black) RF black wire
SAM output 3 (red)
SAM output 1 (white)
SAM output ground (black)
SAM output 2 (red)
SAM output 4 (white)
RF enable (white)
RF violation (green)
RR violation (green)
RR enable (white)
RR Alarm#3/Alert (brown)
SAM input 6 (blue)
SAM ground (black)
SAM input 7 (orange)
SPEAKER - LEFT
(SL)
SPEAKER - RIGHT
(SR)
Red
Yellow
Orange
Red
SAM input 8 (purple) unused
SAM ground (black) spare
+
-
IGN
1
1
3
4
3
5
6
2
6
Wiring Diagram
*If both PSA and RHDZ are installed, a shared GPS
receiver connects to both systems. For full instructions,
see the Appendix to this guide.

© Safe Fleet | 2019 | All rights reserved | Part #: 700-1144 R3
PSA Installation Guide
p. 14
Wiring Diagram
Radar I/O harness (060-1128)
SAM I/O harness (060-1117)
Power splitter harness (060-1166)
SAM power harness (PH2X2MFJR)
SAM audio connector (085-1096)
Speaker cable extension (060-1155)
Wiring Diagram Cable Legend
2
1
3
4
5
6

© Safe Fleet | 2019 | All rights reserved | Part #: 700-1144 R3
PSA Installation Guide
p. 15
Installing Harnesses
Installing Harnesses
SAM I/O Harness
The SAM I/O harness supports the following connections:
Inputs
• 
• Radar (alerts and warnings)
Outputs
• Radar enable
• SAM display
Installation Procedure
1. SIGNALS port.
2. 
3. page 13):
• Bus signals
• Front and rear radar I/O harnesses
GPS
Connect the GPS receiver's pigtail to a USB port on the SAM controller.
We recommend securing the USB cable to the SAM I/O harness:
1. 
SIGNALS port.
2. Create a small loop a few inches from the USB connector at the end
of the GPS pigtail.
• Use a cable tie to fasten the loop to the SAM I/O harness wire
bundle. Leave enough slack so the USB connector so can plug
in and out of a USB port on the SAM controller.
3. Connect the USB cable to a port on the SAM controller.
GPS Pigtail
Cable Tie
SAM I/O Harness
 NOTE: GPS connection to the Right-hand Danger Zone (RHDZ) system
Installations that include PSA and the Safe Fleet RHDZ system share location data from a single GPS receiver
connected to both systems. For more information, see the "Appendix" on page 19.
1
2
3
SAM I/O Harness

© Safe Fleet | 2019 | All rights reserved | Part #: 700-1144 R3
PSA Installation Guide
p. 16
Installing Harnesses
SAM Power and Splitter Harnesses
A splitter cable takes power from the SAM power harness to supply both

Installation Procedure
1. 
(060-1166) to the SAM POWER port.
2. 
harness (PH2X2MFJR).
3. 
• 
wire the other side of the fuse holder to battery positive.
• 
supplied 1A fuse/holder, and wire the other side of the fuse
holder to vehicle ignition.
• 
negative.
4. 
"Audio
Harnesses" on page 17.
2
SAM Power Harness 3
1
Power Splitter
4
2

© Safe Fleet | 2019 | All rights reserved | Part #: 700-1144 R3
PSA Installation Guide
p. 17
Installing Harnesses
Installation Procedure
1. 
into the SAM controller's A/V port.
2. Plug the audio connector's 2 male RCA jacks into the isolator pigtail's
female RCA jacks (red to red, and black to white).
3. 
female LOW INPUT jacks (red to R, and white to L).
4. page
16
a. POWER

b. GROUND

c. Connect the orange (REMOTE

information, see the "Wiring Diagram" on page 13.
d. 
POWER port.
5. Wire the speaker harness:
a. Splice the 2 green wires (right speaker) from the harness to an
extension cable (060-1155). The harness striped green connects to the
extension black; the harness green connects to the extension red.
b. Splice the 2 black wires (left speaker) from the harness to an extension
cable (060-1155). The harness striped black connects to the extension
black; the harness black connects to the extension red.
c. SPEAKER
port.
d. Connect the black and red wires from the right speaker's extension

e. Connect the black and red wires from the left speaker's extension cable

Audio Connector
Speaker Harness
Amplier Power Harness
Audio Harnesses

comes with a 1x3 power harness (including 5A inline fuse) and a 1x4 speaker harness.

© Safe Fleet | 2019 | All rights reserved | Part #: 700-1144 R3
PSA Installation Guide
p. 18
Installing Harnesses
Radar I/O Harnesses
8-pin aviation connectors attach to forward and rear radar module pigtails
through the bus side panel. From each radar module, three harness legs run
into the bus:
• Serial leg (DB9 connector) to the SAM controller RS-232 port
• Power leg (2-wire) to battery positive (via 5A fuse) and battery
negative
• SAM I/O leg (5-wire) - for details, consult the wiring diagram
Installation procedure
1. Ensure forward and rear I/O harnesses are connected to radar module pigtails (8-pin aviation connectors) and routed
appropriately into the bus. For more information, see "Mounting Radar Modules" on page 12.
2. Connect the red wires from the 2 radar harness power legs to the 5A fuse holder (470-0012G)/5A fuse (420-0007G).
3. Wire the other side of the 5A fuse holder to battery positive.
4. Connect the black wires from the 2 radar harness power legs to battery negative.
5. page 13.
6. Plug one of the DB9 connectors into the SAM controller's RS-232 port. Coil and stow the other serial cable leg/DB9
connector in an appropriate location near the SAM so it's available to connect to the RS-232 port when required.
 TIP: Harness labels
Use the supplied labels to identify forward/rear harnesses and the serial
and I/O legs. For details, see "Wire looms" on page 8.
 TIP: Soft-mounting serial/DB9 harness legs
If the SAM controller is mounted above the windshield, we recommend against permanently installing the serial/DB9

convenient location (such as the switch panel or side compartment) to coil and stow the excess length. Temporarily

 NOTE: Temporary DB9 connections to SAM
Forward and rear radar I/O harness serial legs must be temporarily connected to the SAM RS-232 port (one at a time)

information see the PSA User Guide (700-1176).
DB9 connector to
SAM RS-232
8-pin aviation
connector to
radar pigtail
Consult the
wiring diagram

© Safe Fleet | 2019 | All rights reserved | Part #: 700-1144 R3
PSA Installation Guide
p. 19
Appendix
Appendix
Sharing GPS Data between PSA and Right-hand Danger Zone (RHDZ)

and the other as the client. RHDZ documentation is available on the Safe Fleet Community.
 TIP: Only one GPS receiver required
The GPS signal for both systems is provided by a single receiver connected to the GPS source.
11
22
POWER SIGNALS
VIDEO IN
VIDEO OUT
NOT
USED A/VHDMI
LAN
USB
RS-232
RHDZ (ISAM)
ETHERNET
PSA (SAM)
POWER SIGNALS
LAN
A/V
RS-232
GPS
Using PSA as the GPS source and RHDZ as the client:
a. Ensure PSA has the GPS receiver installed and connected (see "Mounting the GPS Receiver" on page 9 and
"GPS" on page 15).
b. Connect PSA to RHDZ - use the supplied Ethernet cable (part #085-0116, 6ft./1.83m) to connect the PSA SAM
LAN port to the RHDZ ISAM LAN port, as shown in the diagram below.
c. Log in to the PSA system and congure PSA as the GPS server (for instructions, see "GPS Settings" in the PSA
User Guide, part #700-1176).
d. Log in to the RHDZ system and congure RHDZ as the GPS client (for instructions, see "GPS Settings" in the
RHDZ User Guide, part #700-1190).
 TIP: Connect GPS receiver to either system

reversed, with the GPS receiver connected to the RHDZ (ISAM), as described on page 20.

© Safe Fleet | 2019 | All rights reserved | Part #: 700-1144 R3
PSA Installation Guide
p. 20
Appendix
Using PSA as the GPS client and RHDZ as the source:
a. Ensure RHDZ has the GPS receiver installed and connected (for more information, see the Right-hand Danger
Zone Installation Guide, part #700-1189).
b. Connect PSA to RHDZ - use the supplied Ethernet cable (part #085-0116, 6ft./1.83m) to connect the PSA SAM
LAN port to the RHDZ ISAM LAN port as shown in the diagram on page 19.
c. Log in to the RHDZ system and congure RHDZ as the GPS source (for instructions, see "GPS Settings" in the
RHDZ User Guide, part #700-1190).
d. Log in to the PSA system and congure PSA as the GPS client (for instructions, see "GPS Settings" in the PSA
User Guide, part #700-1176).