Radio Interface Box

A home brew universal RIB Box

Rib-320
This is an ongoing project. I needed a RIB to program some Motorola Maxtracs for a club project. I also need to program some Yaesu radios. Instead of building a box for each radio I decided what I needed was a universal box. This is what I have come up with at this point. I found a web site with a wonderful programer that did most of what I wanted here. (Local Copy) I also found some info on the Motorola RIB box on the Bat Labs Web site. My box is a combination of both of these, plus a few little additions.

I need to consolidate all my notes and schematics, and will document them here at a later date.

Rib
Shown with my Maxtrac, and Vertex Interface Cables.

Some of the things I wanted to include in my RIB

Use a DB-25 connector just like that Motorola Rib. This will allow the use of the Motorola cables with my box.
The DB-25's large hood also allows room in the cable for components that are specific to a particular radio.
Use an small external power supply to provide +12 and +5 and -5 volts


Currently I have it set up to program the following radios in the shack.

Yaesu VX-6R
Radio Shack Pro-97
Motorola Maxtrac
Vertex FTL UHF Mobile


Pin out for DB-25 Connector Bold matches signals on Motorola RLN4008

1 -
Gnd
2 -
Mic Hi (Gnd)
3
4 -
BIAS
5
6 -
Not BUSY
7
8 -
BUSY
9
10
11 -
BUS-
12 -
SWB+ 12 Volts
13 -
BUS-
14
15 -
BUS+
16
17
18
19
20
21
22
23
24 -
BUS+
25

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