Setcom MS-900SP User manual

HEADSET
RADIOEXTENSION
POWER
F/S
RRC
INSTALLATION AND USERS GUIDE
3019 Alvin DeVane Blvd.
Ste. 560
Austin, TX 78741
Phone: [phone]
CORPORATION
®
TECH SUPPORT: 650-965-8020 ext. 703
The MS-900SP is a Single-Person Radio Interface
designed for vehicular or desktop use.
A single 900-series headset can be connected to the
HEADSET jack, or can be used remotely by
connecting an extension station into the
EXTENSION port.
A footswitch (FS-950) or a pushbutton station
(PBS-950) can be added to allow hands-free
transmit operation.
The MS-900SP is typically connected to a single
mobile radio through use of the proper radio cable.
Adding an RRC-950 Radio Routing Controller and
25-0108 connecting cable will allow operation with
two radios. One radio cable will be required for each
radio. The RRC-950 has a toggle switch that allows
for switching TX, RX, and PTT functions between the
two radios (RX can be either summed or switched).
The MS-900SP can be powered from 12 to 24 VDC,
either supplied by a vehicle power system (using a
Setcom 25-1004 Power Cable), or by using a small
AC-to-DC power supply (Setcom 26-5007). The unit
has an internal 1 Amp ATO-type fuse, but it is
recommended that a vehicle power source also be
fused (at least 1 A).
Questions or technical issues? Please call:
Page 1 of 3
3/3/16 SBH MS-900SP_UserGuide_REV_B.pdf

HEADSET
RADIOEXTENSION
POWER
F/S
RRC
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
SN:S000011111
PS-900EMS-xx Extension Station
(xx = cable length) or similar station
CSB-900x TX Headset
(or similar TX Headset
with TRS plug)
Only 1 headset can be plugged
in at any time, connected to
either the HEADSET jack or the
jack on an Extension Station.
Mount the MS-900SP 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.
FS-950 PTT Footswitch
(pushbutton PTT switch
Option is available)
25-1004
Power Cable
Connect Cable to Power
Source, 12 to 24 VDC
RED = +V
BLACK = GND
See Page 1 for more information
on powering the MS-900SP
MS-900SP Typical Installation
3019 Alvin DeVane Blvd.
Ste. 560
Austin, TX 78741
Phone: [phone]
CORPORATION
®
TECH SUPPORT: 650-965-8020 ext. 703
Questions or technical issues? Please call:
Page 2 of 3

NCS12S1212C
RX LEVEL
VR2
TX LEVEL
SW1
RX RANGE
SW3
OFF ON
OFF
3019 Alvin DeVane Blvd.
Ste. 560
Austin, TX 78741
Phone: [phone]
CORPORATION
®
TECH SUPPORT: 650-965-8020 ext. 703
Questions or technical issues? Please call:
Page 3 of 3
RX Audio level is normally
set by the volume control on
the mobile radio.
If further adjustment is
needed, RX LEVEL control
VR2 can be used to adjust
RX volume.
MS-900SP Controls and Adjustments
TX Audio level is normally factory-preset to the correct level for the
radio type specified when the MS-900SP is ordered.
If a different TX level is required the TX LEVEL SW1 can be set
from 0 (highest) to F (lowest) to accommodate various radios.
Call Setcom Tech Support for assistance if needed.
MS-900SP shown with top cover removed:
N O
1 2
If RX LEVEL control VR2 does not provide
enough adjustment range, the RX RANGE
switch SW3 can be set to allow higher or
lower level settings.
RX RANGE
SW3
(shown enlarged)
ON
OFF
To increase RX Level,
set section 1 to ON
To decrease RX level,
set section 2 to ON
Do not set both sections
to ON, use only one
section or the other
Section 2 Section 1
For Factory Calibration
DO NOT ADJUST