GE Monogram (SL70) (SM4150) Combo Cable

[2wayfreq]

Hey,
I have a few Monogram SL70s and an SM4150 I want to reprogram. I have the original GE cable built for these but, I can't figure out how it interfaces with the PC?? It has a male DB25 end as shown and it looks like I am missing a special cable that would adapt it to a DB9 Serial to PC! I was thinking maybe it plugs into the TQ3370 box but that is also DB25 Male. Anyone messed with these before? Yeah I could get headache free cables at RF Guys , but why spend $100.00?

 

[Reelfishguy]

As I recall the programming cable plugged directly into the parallel printer port. The interface box was not required

 

[KevinC]

Been a long time since I programmed a Monogram, but I "believe" I just used a DB9 to DB25 adapter. Pretty sure it's not a parallel port programmer, but I'm not 100% on that.

 

[2wayfreq]

Ok, Thanks! I'll try a simple DB25 female to DB9 Female cable.

 

[2wayfreq]

I didn't have the right extension cable gender and no gender changer. Just tried to plug it into DB25 "Com 2" and also the Printer LPT1 port. No Joy. I don't see how a printer port can be used as a COM Port. The SMP-4004C software beeps and says no adapter found. I'm using a Clone 286 with DOS 6.22. The Red TX light on the radio stays on as if its keying up as well. Disappears when you remove the cable.
I know, OLD Radios but I believe these may be narrow band capable so could be useful. I saw the YouTube video with the SL70 UHF portable and he was using the RF Guys Cable with no issues.

 

[2wayfreq]

Update: From Hall Electronics Website--Ahhh No Wonder! I would need the GE software and I don't have that. The SMP Software is not compatible.

Quote:

"Programming Software"

"The GE software is TQ3375 and is not compatible with the Maxon cables. The Maxon software is SMP???? and is not compatible with the GE cable. There seems to be no difference between the GE version of the radio, and the Maxon version, other than cosmetics. The radios may be a different color, or the speaker grille has a different texture, but both "brands" of radio seem to program fine with either setup."

 

[n3obl]

They are not Narrowband capable.