Ritron RRX-450 Application Note

RRX-450/-452/-460 w/ RRX-ACC and RRX-GCI Cables
Hookup to ZETRON Model 42/ 49 LTR Controllers
RRX-CGI
CABLE
COLORS
RED
N/ C
BLK
N/ C
N/ C
BLU/ BLK
WHT
N/ C
N/ C
N/ C
BLU/ WHT
ORG
ORG/ BLK
BLU
SHIELD N/ C
GRN
RRX REPEATER JUMPER SETTINGS (Same as factory settings)
NOTES:
1. A 1K resistor installed in RRX J 401 (Pin 4 to Pin 7), turns OFF the RRX internal CTCSS/ QC encoder when
RRX-CGI, pin 12 is connected as shown. DO NOT set R 423 to 0 (zero). (This does not disable the DQC encoder.)
2. If PJ 404 is left in "A" position, either unplugging the RRX-GCI cable, OR lifting the ORG/ BLK wire from GND, will
automatically revert an RRX Repeater to normal (QC) Repeater mode, as programmed. When it is re-connected,
the QC encoder will again be automatically disabled (i.e.: no RESET required).
3. Leave RRX potentiometers at factory settings. Verify/ set R 426 (VOICE DEV pot), reduced to 4.0/ 1.7 kHz voice
deviation limiting to allow for 1.0/ 0.8 kHz of LTR data deviation.
Publication 14540001 Rev. D
APPLICATION NOTE
ZETRON
CONNECTOR
1 1 +12 VDC IN (3 AMP PICO FUSE IN RRX)
2
3 3 GND
4
5
6 6 PTT GND
7 7 PTT
8
9
10 10 EXT "CARRIER DETECT" INPUT (OPTIONAL) *
11 11 TX AUDIO OUT
12 12 REPEAT DISABLE (GND) [NOTE 1, BELOW.]
13 13 DATA OUT
14 14 CABLE SHIELD (GND)
15 15 RX DISCRIMINATOR AUDIO INPUT
ZETRON INTERNAL JUMPERS
JP1
JP2
JP3
JP4
JP6
JP7
JP8
JP10
JP11
JP5, JP9
ZETRON MODEL 42 -- LEFT SIDE
Follow ZETRON instructions to set all audio levels.
1
DO NOT ground the Shield/ Drain Wire at the Controller end;
leave it grounded inside RRX only.
PJ401 A
PJ402 B
PJ403 A
PJ404 A
PJ405,PJ406 Not Installed
PJ407 B
00-01
P.O. Box 1998, Carmel, IN 46082-1998
Ph: 317-846-1201; 1-800-USA-1-USA ( 1-800-872-1872 )
WEB: www.ritron.com
1
A
B
"HI"
A
A
Set for "INT SQ" *
A = N.O.
TX Polarity = "B - INV"
RX Polarity = "A - TRU"
Not Installed
BEEP GENERATOR NORMAL
INTERNAL AUDIO FILTER SELECT (HIGH PASS)
AUDIO PATH TO TONE DECODER
REPEAT DISABLE NOT SELECTED HERE (See Note 2)
"CD" CARRIER DETECT (LO) TO BLU/ WHT WIRE
•
505 West Carmel Drive, Carmel, IN 46032
•
Fax: 317-846-4978
•
E-mail: ritron@ritron.com
NOTE:
Preset all pots to
12 o'clock, a close
approximation of
final setting.
•
USA