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Trilogy Communications
Mentor RG
14.5.3
Cable Specification
Cable type
Four twisted pair, 8 conductors
Conductor size
22 AWG
Shielded
Yes
Outer sheath
PVC-U/V: outdoor, weather resistant
Outer diameter (max)
6.2mm
Trimble supply a range of ready-made cables – please contact them directly for further details. These
are available either un-terminated or terminated with a D25 plug (male) connector. The terminated
version interfaces directly to the Trilogy break-out cable assembly (see 14.5.5).
14.5.4
Connecting a single external receiver to two Mentor RG
A single external receiver may be deployed and connected to a pair of Mentor RG generators. This
simplifies the installation but will require a small amount of additional wiring adjacent to the Mentor
RG. Some data signals require termination and this should be configured using the appropriate setup
menus as shown in section 14.8. The table below shows wiring appropriate for a pair of Mentor RG.
A cable break out assembly is included with every smart antenna purchased from Trilogy. See below
for details.
The quantity of break-out cables required for particular applications is shown in the table below.
Number of
Mentor RG
Number of smart
antennas
Number of cable assemblies
needed
Single SPG - single
antenna
1
1
1
Main / reserve
dual SPG – single
antenna
2
1
1
Main / reserve
dual SPG – dual
antenna †
2
2
2 †
† Connect each SPG using the connectors marked “Main”. Do not connect the “Reserve” connectors.
Cable break out assembly (1m):
D25 socket >> 2 x 12 pin Lemo