Device cables
This page contains information and teardown photos of various multimeter PC connectivity cables and adapters.
Agilent U1173A
The Agilent U1173A is an IR-USB cable.
Hardware:
- Prolific PL2303HX (max. baudrate 19200, according to the Agilent website)
Works with:
- Agilent U1230/40/50/70 series
- Note: For the U1240 series, the additional U1179A IR bracket is required.1
Where to buy:
- TODO.
Device, front
PCB, front
PCB, back
Agilent U1177A
The Agilent U1177A is an IR-Bluetooth interface module.
Notes: 9600 baud, 8n1 settings on the PC. The protocol (AT commands) allows changing the baud rate to 19200, among other things.1 Default Bluetooth PIN: 1234. For the U1240 series, the additional U1179A IR bracket is required.2
Hardware:
- CSR BC417...
- Macronix MX...
- PCB markings: U1177-26500, REV004, MSD-02
Works with:
- Agilent U1230/40/50/70 series
Where to buy:
- TODO.
Device, front
Device, back
Battery compartment
PCB, front
PCB, back
Amprobe 38SW-A
The Amprobe 38SW-A is an RS232 PC interface cable for the Amprobe 38XR-A multimeter. The "38SW-A" name is also used to refer to the respective PC software for use with the serial cable.
Hardware:
- TODO.
Works with:
Where to buy:
- Digikey, TME.eu, RS Components, Mercateo, testersandtools.com, Newark, Distrelec, and various others.
- The usual price is around €20-€35, depending on vendor and location.
Package, top
Package, bottom
Cable, top
Cable, bottom
CD-ROM, top
CD-ROM, bottom
CD-ROM, contents
Cable, opened
Housing 1
Housing 2
PCB, top
PCB, bottom
PCB, pinout
Brymen BU-86X
TODO.
Hardware:
- TODO.
Works with:
- Brymen BM867/BM869
Where to buy:
- TODO.
Fluke IR189USB
The Fluke IR189USB is a USB interface cable for Fluke-18X and 28X DMMs.
Fluke OC4USB
The Fluke OC4USB is a USB interface cable for the Fluke 120 series, 190 series scope meter, and the 430 series power quality analyzer.
Resources:
Fluke PM9080
The Fluke PM9080 is an RS232 interface cable for "digital hard-copy output to serial printer or remote control via a PC". It works for the Fluke scope meter test tools, power harmonics analyzers, graphical multimeters and multifunction counters.
The max. supported baud rate is 57600.
Resources:
GreenLee DMSC-9U
TODO.
Hardware:
- TODO.
Works with:
- GreenLee DM-800 series, DML-430A
Where to buy:
- TODO.
MASTECH MAS34X cable
TODO.
Hardware:
- TODO.
Works with:
- MASTECH MAS345, others
Where to buy:
- TODO.
Cable
Cable, connected
UNI-T UT-D01
TODO.
Hardware:
- TODO.
Works with:
- UNI-T UT61D/...
- Voltcraft VC820/VC840/...
Where to buy:
Cable
Cable, IR
Cable, open
PCB, front
PCB, back
UNI-T UT-D04
The UNI-T UT-D04 is a USB/HID cable for various UNI-T multimeters (and rebranded models) with PC connectivity.
Hardware:
- WCH CH9325 (WCH = Nanjing QinHeng Electronics Co., Ltd.)
Works with:
- UNI-T UT61D/...
- Voltcraft VC820/VC840/...
- TODO
Where to buy:
Cable
Cable, IR
Attached cable
Opened 1
Opened 2
PCB, front
PCB, back
V&A VA4000
The V&A VA4000 is a USB PC interface cable for various V&A multimeters.
It seems there have been at least two different revisions of the cable. The older one used a Sunplus SPCP825 USB-to-serial chip (see here, here, or also check the drivers from here), the newer revisions use a Prolific PL2303HX chip.
Hardware (old cable version):
- USB to serial chip: Sunplus SPCP825
- Crystal: ?
Hardware (new cable version):
- USB to serial chip: Prolific PL2303HX YR0903A
- Crystal: 12MHz
Works with:
- TODO.
Where to buy:
- TODO.
USB cable
USB cable PCB, front
USB cable PCB, back
V&A VA4001
The V&A VA4001 is an RS232 PC interface cable for various V&A multimeters.
TODO.
Victor 86C USB cable
The Victor 86C PC interface cable (doesn't seem to have a specific name or part number) contains a USB/HID chip.
Hardware:
- USB/HID chip: Unmarked SO-20 chip
Works with:
- Victor 86C. Maybe other Victor models(?)
Where to buy:
- The cable ships with the Victor 86C. It's unclear whether it can be bought standalone (without DMM).
USB cable
USB cable, open
USB cable PCB, front
USB cable PCB, back
Reverse engineered pinout of the unknown USB/HID chip:
| 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 |
|---|---|---|---|---|---|---|---|---|---|
| —— | —— | —— | 5V | —— | —— | D+/- | D+/- | —— | ~6MHz clock (?) |
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| RXD | —— | —— | —— | —— | —— | GND | —— | —— | —— |