Eclipse/TMS trunking
1
RF Technology Eclipse Repeater &
Trident Micro Systems NTS/ Passport Controller
Y-CABLE (1 x DB25M to 2 x DB25M)
Cable Pin Out Description for NTS and Dual Repeaters
NTS
Trunking Card REPEATER 1
DB-25M
Description
Colour
DB-25M
Links
Description
1
RX Disc Aud
Yellow
20
PS4-Disc
RX p18 Disc
2
TX Audio
Blue
19
PS3-HiZ
TX p4 HiZ[+]
3
TX Data
Brown
7
-
TX p18 Tone[-]
4
TX PTT
Purple
6
-
TX p3 PTT
-
Com. Alarm
White
4
-
RX/TX Alarm
9
Audio Ground
Green
13
0V Ground
12
Ground
(Shield N/C)
Black
25
Shield
connect
0V Ground
NTS
Trunking Card REPEATER 2
DB-25M
Description
Colour
DB-25M
Links
Description
14
RX Disc Aud
Yellow
20
PS4-Disc
RX p18 Disc
15
TX Audio
Blue
19
PS3-HiZ
TX p4 HiZ[+]
16
TX Data
Brown
7
-
TX p18 Tone[-]
17
TX PTT
Purple
6
-
TX p3 PTT
-
Com. Alarm
White
4
-
RX/TX Alarm
22
Audio Ground
Green
13
0V Ground
25
Ground
(Shield N/C)
Black
25
Shield
connect
0V Ground
N/C = Not Connected
NOTE: Shield wire is connected to Ground at Repeater end ONLY
Eclipse Transmitter Setup
Serial No:
Freq:
Item
Description
Check
TL
Set JP4 for Pins 1 and 2 (shorted, up position) ie HiZ input – Audio in
TL
Set JP6 for Pins 2 and 3 (shorted, other position) ie 20dB attenuated
TL
Remove jumpers JP9, JP10, JP11. Disables the dc loop switching.
TL
Remove JP8, not required.
PD
Remove R46 (10K), C39 (1N0), C116 (1uF), R127 (470K)
Replace R127 with 1M Ohm resistor
Using the wire specified, connect Pin 6 of JP8 to the junction of C116 and
R127 (which is adjacent to screw mounting hole). Secure the wire with
tape or silicone adhesive
Eclipse Receiver Setup
Serial No:
Freq:
Item
Description
Check
TL
Remove jumpers JP7, JP8, JP9. Disables the dc loop switching
TL
Locate C35, 0.47uF capacitor on pcb (U3 pin 6 to U2 pin 5) and replace
with 1uF polyester capacitor (if not already done)
TL
Apply RF signal to RX antenna port (channel frequency) @ -70-100dBm.
FM modulated with 1000Hz @ 1.5KHz of deviation
TL
Adjust Discriminator Audio level control RV1 (located near U2) to
1.1V p/p for Trident Raider
