noahhusby/LINC1The Laboratory Instrument Network Controller (LINC) is a modern network GPIB interface for test equipment
LINC is an open-source printed circuit board by noahhusby, from the noahhusby/LINC repository on GitHub, published under the CERN-OHL-P-2.0 licence. It is a 4-layer board of 55.1 × 58 mm with 39 parts on 89 nets, routed with 612 tracks and 40 vias.
It is built around the SN74LVC07APWRE4, THVD1451D and SN74LVC14APWRG3, with the SN74LVC1G07DCKR, SN74LVC8T245PWRE4 and TLV74333PDBVR-TP among its other parts. Its parts include 14 capacitors, 8 ICs, 6 resistors, 4 connectors and 2 diodes. It belongs with the interfaces and adapters boards and the STM32 boards of this library.
This project came about from the need to control my PM2812 dual-channel power supply manufactured by the Phillips and Fluke consortium in the mid 90s. While later revisions of this device did feature a serial port, the earlier versions (such as mine) were stuck with the GPIB/HP-IP interface. This interface was used on test equipment up until the mid 2010s and yet there is no simple or affordable way to communicate with it. The interface chips for GPIB are no longer manufactured and difficult to source.
The goal of this project is to create a controller that can translate commands from a networked device (either over LAN or RS485) to the PM2812 power supply. This would allow for a desk-mounted control panel with a modern OLED display and tactile controls to replace the dated "system power supply-type" interface found on the PM2812.
This project is licensed under the CERN OHL-P-v2 License.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 100nF | Capacitor_SMD:C_0603_1608Metric | C1, C2, C3, C4, C10 |
| 4 | 6.8 pF | Capacitor_SMD:C_0603_1608Metric | C6, C7, C8, C9 |
| 3 | 1k | Resistor_SMD:R_0603_1608Metric | R1, R2, R3 |
| 3 | 4.7 µF | Capacitor_SMD:C_0603_1608Metric | C5, C11, C12 |
| 2 | 2.2 µF | Capacitor_SMD:C_0603_1608Metric | C13, C16 |
| 2 | 5.1k | Resistor_SMD:R_0603_1608Metric | R6, R7 |
| 2 | MountingHole | MountingHole:MountingHole_2.1mm | H1, H2 |
| 2 | Red | LED_SMD:LED_0603_1608Metric | D1, D2 |
| 1 | 112-024-113R001 | Connector_Centronics:CONN_112-024-113R001_NRC | J1 |
| 1 | 2.2k | Resistor_SMD:R_Array_Convex_8x0602 | R8 |
| 1 | BOOT | TestPoint:TestPoint_Pad_D1.0mm | TP1 |
| 1 | CS10820-24M | Crystal:Crystal_SMD_2016-4Pin_2.0x1.6mm | Y2 |
| 1 | FTSH-105-01-L-DV-K | Connector_Samtec_FTSH:SAMTEC_FTSH-105-01-X-DV-K-X | J2 |
| 1 | MU00525-32.768K | Crystal:Crystal_SMD_3215-2Pin_3.2x1.5mm | Y1 |
| 1 | RJHSE5380 | Connector_RJ:RJ45_Amphenol_RJHSE5380 | J3 |
| 1 | SN74LVC07APWR | Package_SO:TSSOP-14_4.4x5mm_P0.65mm | U2 |
| 1 | SN74LVC14APWR | Package_SO:TSSOP-14_4.4x5mm_P0.65mm | U7 |
| 1 | SN74LVC1G07DCKR | Package_TO_SOT_SMD:SOT-353_SC-70-5 | U6 |
| 1 | SN74LVC8T245PWR | Package_SO:TSSOP-24_4.4x7.8mm_P0.65mm | U1 |
| 1 | STM32H523RETx | Package_QFP:LQFP-64_10x10mm_P0.5mm | U3 |
| 1 | THVD1451D | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U5 |
| 1 | TLV74333PDBVR | Package_TO_SOT_SMD:SOT-23-5 | U4 |
| 1 | USB4085-GF-A | Connector_USB:USB_C_Receptacle_GCT_USB4085 | J4 |
| 1 | USBLC6-2SC6 | Package_TO_SOT_SMD:SOT-23-6 | U8 |
It measures 55.1 × 58 mm and has 4 copper layers, 1.6 mm thick.
39 parts, built around the SN74LVC07APWRE4, THVD1451D, SN74LVC14APWRG3 and SN74LVC1G07DCKR. 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.
From the noahhusby/LINC repository on GitHub, at the commit this page was made from: the board is LINC.kicad_pcb and its schematic LINC.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository publishes it under the CERN-OHL-P-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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