ARCNET 16 bit PC/104 card

Key features

  • 16 Bit card
  • Interrupts adjustable from 2 to 15
  • ARCNET controller COM20022 (fully compatible to COM20020)
  • CE label (industrial environment)
  • PC/104 bus compatible
  • Dimensions acc. to PC / 104 spec. V 2.3

Order information

Order name Short description
SH ARC-PC104 PC/104 ARCNET card with one port for an interface module type “PC104”

Interface modules type “PC104”

Order name Bit rateSignalSocketCable type
SH KOAX-PC1042.5 Mbit/s sine dipulse BNCcoaxial cable RG-62
SH LWLSM-PC104156.25 kbit/s – 2.5 Mbit/sopticalST/BFOCsingle-mode fibers
SH LWLSMA-PC104156.25 kbit/s – 2.5 Mbit/sopticalFSMAmulti-mode fibers
SH LWLST-PC104156.25 kbit/s – 2.5 Mbit/sopticalST/BFOCmulti-mode fibers
SH LWLTOS-PC104156.25 kbit/s – 2.5 Mbit/sopticalTODX296/TOSLINKmulti-mode fibers
SH LWLVL-PC104156.25 kbit/s – 2.5 Mbit/sopticalVersatile Linkplastic optical fibers (POF)
SH RS485-PC104156.25 kbit/s – 10 Mbit/sRS-485/EIA-485DE-9/D-subtwisted pair cable
SH RS485-STB-PC104156.25 kbit/s – 10 Mbit/sRS-485/EIA-485screw terminal blocktwisted pair cable
SH RS485AC-BNC-PC1042.5–10 Mbit/sRS485ACBNCcoaxial cable RG-62
SH RS485AC-RJ45-PC1042.5–10 Mbit/sRS485ACRJ45twisted pair cable
SH TWP-PC1042.5 Mbit/ssine dipulseRJ45twisted pair cable

Scope of application

The SH ARC-PC104 is an ARCNET card for systems with PC/104 bus. You may select the interface modules as you wish. They are connected with the basis card by means of a ribbon cable. The modules can be integrated in a PC/104 processor system at any place (either at the plug or with the help of two fastening angles).

A service LED onboard the interface modules signals the receiving activity in operation. The design meets EMC standards suitable for use in rough industrial environments.

SH ARC-PC104 uses the same standardized driver interface as the other SOHARD ARCNET cards.


The following components are on the card:

ARCNET controller
On the card is installed the ARCNET controller COM20022 from SMSC that is fully compatible with the COM20020. Supported are bit rates up to 10 Mbps as well as additional settings.

PC/104 Interface
The 16 bit card allows the use of interrupts from 2 to 15. That only occupies 8 I/O addresses with flexible basis address (compatible to SH FARC E3).

Field bus connections
All interface modules (please order separately) are connected to the PC/104 card by means of a ribbon cable. Currently fiber optic, coaxial and RS-485 modules are available. A security logic protects the coax transceiver of the interface module from being destroyed during operation by small data rates or by usage of backplane mode.


  • Baud rate: 156,25/312,5/625 kbps; 1,25/2,5/5/10 Mbps
  • Fieldbus Connection: Coax, RS-485, LWL with ST, SMA or TOSLINK connec.
  • I/O range occupies 8 addresses in the I/O range, basisaddress in steps of 16 byte adjustable
  • Interrupts: 9 (2), 3-7, 10-12, 14, 15
  • Power supply: +5V, < 0,3A (without interface module)
  • Temperature range, operation: 0°C to +55°C
  • Temperature range, storage: -20°C to +85°C