User Manual

LBI-38636S
31
REPEATER PANEL INSTALLATION
CSI Model 32 Repeater Panel
Use the following information in Table 11 to
configure the MASTR III base station when installing the
CSI-32 Repeater Panel.
1. Cut the PWB pattern at JP-1 on the T/R Shelf’s
backplane 19D902948.
2. Make the following connections between the
base station and the repeater panel. Connectors
P2, P3, and P5 are located on the backplane.
Connection to the repeater panel is made at J3,
the rear panel DB9 subminiature "D" type
connector.
NOTE
Special Conditions for MUX and Carrier:
1. Add a pad of approximately 15 dB in the
connection between the RCN output and the
MUX input. It is common for the MUX input
to have a test tone level of -16 dB and an
average voice level of -29 dB.
2. Add a pad of approximately 15 dB in the
connection between the Station Control panel
output and the MUX input.
3. Program the base station using the standard PC
programming software. For proper operation, the
station firmware must be 344A3307G12 (Group
12) or higher (MASTR III System Board - U4).
Program the following parameters:
a. Repeater (Single Channel only)
b. Repeater Panel (Community Repeater)
option
c. RF Duplex
d. No CG Encode/Decode
e. No CCT or DODT Timers
f. Remote Programming optional
4. Set the Repeat RF Modulation and Subaudible
Tone (CG) Modulation levels by adjusting the
Zetron 38A Repeater Panel Audio Output and
CTCSS Output potentiometers or the MASTR III
station’s TX Audio or CG digital potentiometers.
Use the CG pot (CTCSS pot for CSI-32) to adjust
the Subaudible Tone Modulation level and the TX
AUDIO pot (Audio Output pot for CSI-32) to
adjust the Normal Speech Modulation.
NOTE
It may be necessary to decrease the value of R5 (or
short across) on the CSI Repeater Panel to obtain
the desired Subaudible Tone Modulation level.
Zetron 38A Repeater Panel
Use the following information in Table 12 to
configure the MASTR III base station when installing the
Zetron 38A Repeater Panel.
1. Cut the PWB pattern at JP-1 on the T/R Shelf’s
backplane 19D902948.
2. Make the following connections between the
base station and the repeater panel. Connectors
P2, P3, and P5 are located on the backplane.
Connection to the repeater panel is made at the
15 pin connector on the rear panel.
3. Program the base station using the standard PC
programming software. For proper operation, the
station firmware must be 344A3307G12 (Group
12) or higher (MASTR III System Board - U4).
Program the following parameters:
a. Repeater (Single Channel only)
b. Repeater Panel (Community Repeater)
option
c. RF Duplex
d. No CG Encode/Decode
e. No CCT or DODT Timers
f. Remote Programming option
4. Set the Repeat RF Modulation and Subaudible
Tone (CG) Modulation levels by adjusting the
Zetron 38A Repeater Panel Audio Output and
CTCSS Output potentiometers or the MASTR III
station’s TX Audio or CG digital potentiometers.
Use the CG pot (CTCSS pot for Zetron 38A) to
adjust the Subaudible Tone Modulation level and
the TX AUDIO pot (Audio Output pot for Zetron
38A) to adjust the Normal Speech Modulation.