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
1RX Disc Aud Yellow 20 PS4-Disc RX p18 Disc
2TX Audio Blue 19 PS3-HiZ TX p4 HiZ[+]
3TX Data Brown 7-TX p18 Tone[-]
4TX PTT Purple 6-TX p3 PTT
-Com. Alarm White 4-RX/TX Alarm
9Audio 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
