2 layers25.4 × 95.9 mm
2 layers50.8 × 61.6 mm
Cable Test Master
juniperlynx/Cable-Tester5Simple RJ45/RJ12 cable tester using ATtiny24
- Size
- 50.8 × 61.6 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 64
- Nets
- 45
- Pads
- 191
- Tracks, vias
- 569, 35
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 3 Feb 2018
- Updated
- 23 Mar 2018
Overview
Cable Test Master is an open-source printed circuit board by juniperlynx, from the juniperlynx/Cable-Tester repository on GitHub, published under the MIT licence. It is a 2-layer board of 50.8 × 61.6 mm with 64 parts on 45 nets, routed with 569 tracks and 35 vias.
It is built around the 78L05, BSS84 and RJ45. Its parts include 19 diodes, 18 transistors, 12 resistors, 4 connectors and 3 capacitors. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
3
78L05
SOT-89-3-20℃~+120℃@(Tj) 1 1.7V 100mA 2mA 30V 40uV 49dB@(120Hz) 5V Fixed Over Temperature Protection、Short Circuit Protection Positive SOT-89-3 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSUMWVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
BSS84
SOT-23-55℃~+150℃ 1 P-Channel 130mA 2.8pF 24.6pF 2V 3.2Ω@5V 300mW 4.7pF 50V 590pC@10V SOT-23 MOSFETs ROHSDiodes IncorporatedMOSFETs
RJ45
TH-12PTH-12P SMT ROHSJLCPCB AssemblyUncategorised
README
README.mdCable-Tester
This is a replacement PCB and software for a cheap commercial cable tester usually sold as the HL-486 (though there are other model numbers, mine is ST-M810). It improves on the original design by adding beefier drive circuitry and a proper voltage regulator for the microcontroller.
Schematics and PCB layouts are available for both ends. The current revision of the Gerbers is untested but only contains slight variations from the most recently ordered version. Complete BOMs for both the master and remote ends are now available for both ends along with Digikey shoping carts in .csv format. I haven't been able to find a source for the multi-LED standoffs used to space the strand indicator LEDs so I've modeled a part in OpenSCAD. The OpenSCAD source and a rendered .stl file are available but untested at this time.
The original Kicad design files are in "Kicad Files/" and the software source code in "Software/". If you'd like to build your own use the Gerber files in "Gerbers/" and the BOMs in "BOM/" along with the standoff model in "3D Parts/STL"
Parts
64| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | LED | LEDs:LED-3MM | LED1, LED2, LED3, LED4, LED5, LED6, LED7, LED8, LED9, LED10 |
| 9 | 200 | Resistors_SMD:R_0805_HandSoldering | R1, R2, R3, R4, R5, R6, R7, R8, R9 |
| 9 | 2N7002 | TO_SOT_Packages_SMD:SOT-23_Handsoldering | Q10, Q11, Q12, Q13, Q14, Q15, Q16, Q17, Q18 |
| 9 | BSS84 | TO_SOT_Packages_SMD:SOT-23_Handsoldering | Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9 |
| 9 | D | Diodes_SMD:SOD-123 | D1, D2, D3, D4, D5, D6, D7, D8, D9 |
| 2 | 10K | Resistors_SMD:R_0805_HandSoldering | R11, R12 |
| 2 | 1u | Capacitors_SMD:C_0805_HandSoldering | C1, C2 |
| 1 | 0.1u | Capacitors_SMD:C_0805_HandSoldering | C3 |
| 1 | 1K | Resistors_SMD:R_0805_HandSoldering | R10 |
| 1 | 78L05 | 78L05_SOIC:78L05_SOIC | U2 |
| 1 | ATTINY24-SS | Housings_SOIC:SOIC-14_3.9x8.7mm_Pitch1.27mm | U1 |
| 1 | DP3T | Tester Switches:SW_DP3T_SLIDE | SW1 |
| 1 | ISP | Pin_Headers:Pin_Header_Straight_2x03 | J4 |
| 1 | PWR | Pin_Headers:Pin_Header_Straight_1x02 | J3 |
| 1 | RJ12 | Tester_Connectors:RJ12_SHLD | J2 |
| 1 | RJ45 | Tester_Connectors:RJ45_SHLD | J1 |
The 59 most common of 64 parts.
Questions
How big is the Cable Test Master PCB?
It measures 50.8 × 61.6 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Cable Test Master use?
64 parts, built around the 78L05, BSS84 and RJ45. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Cable Test Master KiCad files?
From the juniperlynx/Cable-Tester repository on GitHub, at the commit this page was made from: the board is Kicad Files/Master/Cable Test Master.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Cable Test Master design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
More from juniperlynx/Cable-Tester
1Similar boards
- 4 layers150 × 200 mm
- 2 layers34 × 17 mm
- 2 layers33.7 × 97.8 mm
HAN ESP TSS721
UtilitechAS/amsreader-firmware
ESP8266 and ESP32 compatible firmware to read, interpret and publish data to MQTT from smart electrical meters, both DLMS and DSMR is supported
29 parts470 - 4 layers75 × 96 mm
- 2 layers36.8 × 34.7 mm
Tinylab proto1
espotek-org/Labrador
EspoTek Labrador is a USB device that transforms your PC or smartphone into a fully-featured electronics lab. This repo holds all of the source code!
79 parts1.2k - 2 layers51.8 × 32.6 mm
C64-rf modulator replacement
mbarszcz-pcb/c64-rf-modulator-replacement
C64 Composite/S-Video RF Modulator Replacement
33 parts86MIT - 2 layers86.4 × 69.9 mm
- 2 layers106 × 95.4 mm
