HardLabs

IcE1usb RS422 extension

osmocom·osmo-e1-hardware·hardware/icE1usb-rs422/icE1usb-rs422.kicad_pcb

IcE1usb RS422 extension PCB layout, top view — open source board by osmocom

About the IcE1usb RS422 extension PCB

IcE1usb RS422 extension is an open source PCB design by osmocom, published on GitHub. It is a 4-layer board measuring 37.5 × 32.5 mm, with 52 components from 16 distinct parts.

Other key parts include the 74LVC2G125, Si8663, Si8400, TCA9534 and SP485. By type, the board carries 16 capacitors, 16 resistors, 12 ICs, 6 fuses and 2 connectors.

It belongs with the retro computing and rf & radio designs in this gallery.

From the project

Osmocom open source E1 (TDM) hardware; mirror of https://gitea.osmocom.org/retronetworking/osmo-e1-hardware

osmo-e1-hardware - Collection of various E1/TDM hardware projects =================================================================

This repository contains a variety of different projects related to E1/TDM hardware interfaces

icE1usb (fully-fledged USB E1 interface adapter) osmo-e1-tracer (fully integrated passive raw bitstream tracer) osmo-e1-tap (passive high-impedance E1/T1 tap) osmo-e1-xcvr (E1 LIU + magnetics) https://osmocom.org/projects/e1-t1-adapter/wiki/Osmo-e1-xcvr

Main components on the IcE1usb RS422 extension

74LVC2G125Si8663Si8400TCA9534SP485MC78M05_TO252M24C02-FMN

IcE1usb RS422 extension bill of materials (BOM)

52 components, 16 distinct parts — part numbers from the project's BOM.

QtyPartRefs
3
74LVC2G125
U1, U2, U3
1
Si8663
U4
1
Si8400
U5
2
TCA9534
U6, U7
3
SP485
U8, U9, U10
1
MC78M05_TO252
U11
1
M24C02-FMN
U12
1
EXT_IN
J1
1
EXT_OUT
J2
6
300mA
F1, F2, F3, F4, F5, F6
14
100n
C1, C2, C3, C4, C5, C6, C8, C9 +6
1
10u
C7
1
4u7
C10
3
120R
R1, R2, R3
1
1k
R4
12
10k
R5, R6, R7, R8, R9, R10, R11, R12 +4

IcE1usb RS422 extension design files

The KiCad project lives in the osmocom/osmo-e1-hardware repository on GitHub; these links point at the commit this page was built from.

IcE1usb RS422 extension: common questions

How big is the IcE1usb RS422 extension PCB?

The IcE1usb RS422 extension measures 37.5 × 32.5 mm, has 4 copper layers and is 1.532 mm thick.

How many components are on the IcE1usb RS422 extension?

52 components, from 16 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the IcE1usb RS422 extension design files?

From the osmocom/osmo-e1-hardware repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the IcE1usb RS422 extension design in my own project?

The repository has no license, so all rights stay with osmocom. Use it as a reference, and ask the author before reusing the design.

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