Tranz Terminals

Tranz 330

Introduction

Verifone Tranz 300 series terminals are the ubiquitous credit card terminals you see everywhere.

JWA and I found a couple at Surplus Gizmos in Beaverton, Oregon and went to work figuring out what we could hack on it.

It turns out: A lot.

Tranz 300 series terminals internally have two PCBs: a motherboard and a daughter board, connected to each other via a row of 19 .1" spaced headers.

The Daughterboard

The daughterboard has:

• A 16 button key pad
• A credit card swiper
• A 16 character VFD
• A piezo buzzer
• A 20 pin, .1" spaced female header block for connecting to the motherboard.

Pinout

Pin 1 is the "top" pin. The one closest to the VFD.

• Pin 1 - Key pad row 1
• Pin 2 - Key pad row 2
• Pin 3 - Key pad row 3
• Pin 4 - Key pad row 4
• Pin 5 - Key pad column 1
• Pin 6 - Key pad column 2
• Pin 7 - Key pad column 3
• Pin 8 - Key pad column 4
• Pin 9 - Not connected?
• Pin 10 - Not connected?
• Pin 11 - Not connected?
• Pin 12 - Op-Amp Pin 2
• Pin 13 - VFD Power on Reset
• Pin 14 - VFD Data Shift-in
• Pin 15 - VFD Clock
• Pin 16 - VCC to VFD?
• Pin 17 - Speaker?
• Pin 18 - VCC to op-amps?
• Pin 19 - Card reader?
• Pin 20 - Ground

The Motherboard

The motherboard has:

• Power in. A DC plug doing directly into a 7805 voltage regulator.
• Two RJ-11 jacks.
• Two DIN jacks.
• A bunch of Zilog Z80 chips.
• A 19 pin, .1" spaced male header block for connecting to the daughterboard.

Tranz 430

Introduction

These are a modernized version of the 330. More surface mount components. A dual line VFD display.

Like the Tranz 430, it's divided into two pieces, the user-interactive daughterboard (with VFD display, button pad, card swiper, piezo buzzer), and a motherboard with all the logic on it. They're connected with two blocks of 20-pin 0.1" spaced dual-row headers.

This has two VFD controllers of two different types: An MM58248V and an MM58241V.

Daughterboard

Pinout P1

• 20 - 5V
• 19
• 18 - GND
• 17
• 16 - 5V
• 15
• 14 - GND
• 13
• 12 - 5V
• 11
• 10 - GND
• 9
• 8 - 5V
• 7
• 6 - GND
• 5
• 4 - 5V
• 3
• 2 - GND
• 1

Pinout P2

• 20 - VFD Controller 2 - Clock
• 19 - VFD Controller 2 - Data In
• 18 - GND
• 17 - OCK1 from Card Reader
• 16 - 5V
• 15 - OUT1X from Card Reader
• 14 - GND
• 13 -
• 12 - 5V
• 11
• 10 - GND
• 9 - CLS from Card Reader
• 8 - 5V
• 7 - VFD Controller 1 - Data In
• 6 - GND
• 5 - VFD Controller 1 - Blanking Supply
• 4 - 5V
• 3 - VFD Controller 1 - Enable
• 2 - GND
• 1 - VFD Controller 1 - Clock