GE Transportation Systems Global Signaling LLC GS12RII-V1 Manuel D’Utilisation

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The 12RII-LC radio is compatible with the current 12R-LC radio in all its existing clean cab Applications.  Refer to the block
diagram in the following section.  In the clean cab application the primary interface for controls and audio signals is a front
panel located on the front of the radio.  The radio also supports the standard Handset connector and program connector.
Antenna connection is provided through J1.

The 12RII-LC radio mounts onto the standard 17MT-1 AAR mounting Tray.   The Mounting tray is typically located in an
enclosure similar to one specified in the AAR C&S manual in section 12-2.   Power to the radio is provided through connector
J4.  Typical locomotive battery voltage is 74VDC.  Some transit light rail cab cars may provide 37VDC as the primary radio
voltage.

The Clean Cab
Radio is
capable of
performing all
standard radio
functions
associated with
transmitting and
receiving radio
signals.  The
operator
controls are via
buttons on the
front panel.
Front panel
controls allow
for a variety of
channeling
controls,
volume, PTT,
and various
special
functions.  The
front panel also
supports a full
12-character
phone pad
interface for
DTMF

PC

Handset

Antenna

Optional Handset

&

speaker

Battery

12RII-LC

Clean Cab Radio

System

J4

J1

J2

J3

J6

J8

Optional 2nd

Serial Remote

Control Head

NOTE:
Only one optional interface;
Accessory Option (J6) or Secondary
Serial Remote (J8) may be installed
at the same time.

FRONT PANEL ASSEMBLY