Complex repeater operation – Codan Radio MT-4E Analog and P25 Digital - User Guide User Manual
Page 22
USER GUIDE | MT-4E ANALOG & P25 DIGITAL RADIO SYSTEMS
Chapter 3: MT-4E Radio System Confi gurations
Page 14
COMPLEX REPEATER OPERATION
The MT-4E modules may be confi gured to operate in complex repeater confi gurations of up to four sets
of transceivers using the CI-RC-4M-G2 multiple link controller.
The receiver and transmitter modules connect to the CI-RC-4M-G2 repeater controller through RJ45
cables connected to the front panel of the transmitter and receiver modules. The CI-RC-4M-G2
repeater controller is a 1RU height controller that is installed separately from the radio subrack as
shown in Figure 3-2.
Figure 3-2: MT-4E Repeater System shown with four pairs of transceivers
The CI-RC-4M-G2 repeater controller is software programmable to allow fl exible programming options
for the radio system. The CI-RC-4M-G2 controller provides the following features:
•
interconnection of up to four receiver and four transmitter modules in any confi guration (repeater,
repeater with links, cross-band systems, etc.).
•
multiple CTCSS tones and NACs may be selected to operate each connection between receivers
and transmitters (up to seven CTCSS/NAC for each link).
•
DTMF control of receiver to transmitter links.
•
setting of receiver priorities.
•
transmitter channel switching based on received CTCSS or NAC.
•
auxiliary E&M connection.
•
two independent general purpose outputs that can be controlled by NAC, CTCSS or DTMF (open
collector 750 mA / 30 Vdc max).
TRANSMITTER
CNTL
BUS
MIC
RF OUT
A D
ANALOG
DIGITAL
NORM
OFF
KEY TX
MIC MODE
REF
IN
USB
FREQUENCY (MHz)
MADE IN CANADA
MODEL # CODE
RECEIVER
NORM
SQ. DISABLE
OFF
CNTL
BUS
A D
RF N
I
REF
IN
USB
FREQUENCY (MHz)
MADE IN CANADA
MODEL # CODE
TRANSMITTER
CNTL
BUS
MIC
RF OUT
A D
ANALOG
DIGITAL
NORM
OFF
KEY TX
MIC MODE
REF
IN
USB
FREQUENCY (MHz)
MADE IN CANADA
MODEL # CODE
RECEIVER
NORM
SQ. DISABLE
OFF
CNTL
BUS
A D
RF N
I
REF
IN
USB
FREQUENCY (MHz)
MADE IN CANADA
MODEL # CODE
VOL
SYSTEM REGULATOR
METER
+
-
MADE IN CANADA
ON
OFF
SPKR
INT
EXT
EXT
SPKR
OFF
POWER
ON
2
1
5
4
3
6
7
8
11
10
9
FUNCTION
12
RX & TX INTERCONNECT PORTS
TXA
RXA
TXB
RXB
TXC
RXC
TXD
RXD
USB
MULTIPLE LINK CONTROLLER - G2
TRANSMITTER
CNTL
BUS
MIC
RF OUT
A D
ANALOG
DIGITAL
NORM
OFF
KEY TX
MIC MODE
REF
IN
USB
FREQUENCY (MHz)
MADE IN CANADA
MODEL # CODE
RECEIVER
NORM
SQ. DISABLE
OFF
CNTL
BUS
A D
RF N
I
REF
IN
USB
FREQUENCY (MHz)
MADE IN CANADA
MODEL # CODE
TRANSMITTER
CNTL
BUS
MIC
RF OUT
A D
ANALOG
DIGITAL
NORM
OFF
KEY TX
MIC MODE
REF
IN
USB
FREQUENCY (MHz)
MADE IN CANADA
MODEL # CODE
RECEIVER
NORM
SQ. DISABLE
OFF
CNTL
BUS
A D
RF N
I
REF
IN
USB
FREQUENCY (MHz)
MADE IN CANADA
MODEL # CODE
VOL
SYSTEM REGULATOR
METER
+
-
MADE IN CANADA
ON
OFF
SPKR
INT
EXT
EXT
SPKR
OFF
POWER
ON
2
1
5
4
3
6
7
8
11
10
9
FUNCTION
12