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464.100

TAC 1

Mobile Radio

RC or RCB

Radio Cable

Radio Cable part number is determined by radio 

manufacturer, model number, and length of cable

Mount the MS-900MAX using the 4 

small mounting holes or the 2 larger 

holes on the enclosure flanges.

Mounting screws supplied by user.

If 2 radios are required, a Setcom

RRC-950 can be connected to the 

RRC Jack. Refer to the RRC-950 

User Guide for more information.

Connect Power Cable 
to DC Power Source, 
12 to 24 VDC
RED = +V
GREEN = GND

MS-900MAX Typical Installation

3019 Alvin DeVane Blvd.
Ste. 560
Austin, TX 78741
Phone: (650) 965-8020

CORPORATION

®

TECH SUPPORT: 650-965-8020 ext. 703

Questions or technical issues? Please call:

Page 2 of 5

CSB-9xxMAX Wireless Headset

In a typical installation the 

antenna is pointed directly 

upwards as shown here

(or directly downwards for 

ceiling/headliner mount)

If the MS-900SPW4 must be 

installed on a vertical surface, it is 

recommended to “fold” the antenna 

so the main shaft is vertical

To orient the antenna, loosen the 

connector, place the antenna in the 

desired position, then re-tighten the 

connector. Once the antenna 

connector is tightened, do not try to 

turn the antenna

The system will work 

with the antenna 

oriented horizontally, 

but effective range may 

be somewhat reduced

NC

S12S

12

12C

P3

B

T

N

A
N

T

RADIO

POWER

RRC

CHANNEL

SELECT

CHANNEL

The MS-900MAX should be mounted in a 
location where the CHANNEL SELECT 
button is accessible and the CHANNEL 
indicator can be easily seen.

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