DssTest

Null Or Straight Cable Determination

The only way you can tell them apart is with a multimeter or continuity tester. With a striaght thru serial cable, pin 2 should lead to pin 2 and pin 3 should lead to pin 3.

A null modem cable pin 2 should lead to pin 3 and pin 3 should lead to pin 2.

If straight thru then all pins should point to the same number on the other end.

Your local rat shack has the replacemenrt adapter for under $10.00 , Part # 26-0264 ~ female DB9 to male DB9 ~ pins 5 straight & 2 & 3 crossed ..

Want to know what cable you need to flash that shiny,new receiver ? There are two types of cables used, and both look the same on the outside, but are wired differently internally. They are the straight DB9 RS232 female to female cable, and the Null 9 pin RS232 female to female cable. The straight DB9 cable has all pins connected the same at both ends(pin 1-1, 2-2,3-3,etc.). The Null cable(also known as a Null-Modem) has pins 2 and 3 crossed(pin 2-3, 3-2). You can use a straight DB9 cable to program receivers requiring a Null cable, by purchasing an inexpensive Null adapter to attach to one end of the straight DB9 cable. This allows one cable to be used for any receiver.

Here is a list of the most popular receivers on the market and the cable needed to program them.

FTA Receiver update cable types

Ariza Ultra 400/500 - Null Modem
Ariza 700 - Null Cables
Ariza 750 - Null Cables
Ariza 800 - Null Cables
Astrovox 2600 -Straight DB9
Blackbird and all Blackbird clones(BOB, Max 1000, Stealth II, MS1000, ,etc.)-Null Modem
BlueJay 1&2 - Null Modem
Buzz - Null Modem
Captain 7000 - Null Modem
Captain 8000 - Null Modem
Captive Works CW500s - Null Modem
Captive Works CW600s - Null Modem
Captive Works CW600 Premium - Null Modem
Captive Works 1000s -Null Modem
Coolsat 4000 Plus - Null Modem
Coolsat 4000 Pro - Straight DB9
Coolsat 5000 - Straight DB9
Coolsat 6000 Premium - Straight DB9
Coolsat 6100 Private - Straight DB9
Coolsat 7000 - Straight DB9
Coolsat 7100 - Straight DB9
Coolsat 8000 HD - Null Modem
Coolsat 8100 HD - Null Modem
Cooltec - Straight DB9
Coship (All) - Null Modem
Digiwave 6800/7000 - Null Modem
Digiwave Diamond - Straight DB9
Dreambox (All) - Null Modem
ExtremeView Magnum XV3300-Null
Fortec Classic NA - Null Modem
Fortec lifetime - Straight DB9
Fortec Lifetime Ultra - Straight DB9
Fortec MercuryII - Null Modem
Kusat Pro 2600a - Null Modem
Lava 2600 - Null Modem
Lava 3200 - Straight DB9
Lava 3500 - Null Modem
Max 2500 - Null Modem
Megasat (All) - Straight DB9
Microroyal (All) - Null Modem
Neosat iPro1000 - Straight DB9 or Ethernet
Neusat SP6000 - Straight DB9& USB mem stick
Neusat SP 8000-?
OrasatV5-Null
Pansat 1500/2300a/2500a and all clones-Straight DB9
Pansat 2700 - Null Modem
Pansat 3500 - Null Modem & SD card
Pansat 5000HC - Null Modem and USB
Pantec/Multistar Max (All) - Null Modem
Pantec/Multistar MS (All except MS1000)-Straight DB9
Pantec MX/Ultra - Straight DB9
Rex1 - Null Modem
Satcruiser -Null Modem
Silver bullet/ST 1000/2000 - Null Modem
Skyview 500 - Straight DB9
Skyview RX600 - Null Modem
Smartwave 2500A-N2 - Straight DB9
Smartwave 2700A-N2 - Straght DB9
SonicView SV1000 - Null Modem
Spacestar DVB500 - Null Modem
Stealth 2000a - Null Modem
Techsat - Null Modem
Traxis DBS 1500 - Straight DB9
Traxis DBS 2500 - Straight DB9
Traxis DBS 3500 - Null Modem
Traxis DBS 4500 - Straight DB9
Traxis DBS 4550 - Straight DB9
Ultrastar 5000 - Null Modem
Viewsat VS2000 - Null Modem
Viewsat Platinum - Null Modem
Viewsat Extreme- Null Modem
Viewsat Ultra-Null Modem