Interbus Master Interface Generation 4

  • Standard single-width 32 bit PMC module
  • INTERBUS Master Generation 4 (G4) Interface
  • Uses original INTERBUS Master Generation 4 (G4) firmware from Phoenix Contact
  • Optically isolated INTERBUS interface
  • RS232 diagnostic port
  • Status LEDs

Product status: Not Recommended for New Designs

Operating Temperature Range 0 °C to +70 °C RoHS compliant

The TPMC821 is a standard single-width 32 bit PMC module and offers a complete PMC INTERBUS Master Generation 4 (G4) Interface. A MC68332 local controller and the IPMS3 INTERBUS protocol controller are used as controlling units on board of the TPMC821.

The communication between the host CPU and the TPMC821 is handled via a 4 Kbyte Dual Port Memory. The on board firmware running on the MC68332 is the original INTERBUS Master Generation 4 (G4) firmware from Phoenix Contact.

Furthermore the TPMC821 provides a RS232 diagnostic port, the optically isolated INTERBUS interface and status LEDs.

For First Time Users the Engineering Documentation TPMC821-ED is recommended. The Engineering Documentation includes TPMC821-DOC, schematics and data sheets.

Software support (TPMC821-SW-xx) is available for different operating systems.

Mechanical Interface PCI Mezzanine Card (PMC) Interface; Single Size
Electrical Interface PCI Rev. 2.1 compliant, 33 MHz / 32 bit PCI, 3.3V and 5V PCI Signaling Voltage
PCI Target Chip PCI9030 (PLX Technology)
Local CPU MC68332-20 MHz
INTERBUS Controller IPMS-3
Dual Port Memory 4Kbyte (4k x 8)
SRAM 1Mbyte (512k x 16)
FLASH 1Mbyte (512k x 16) + 512Kbyte (256k x 16)
INTERBUS Master Generation 4 (G4)
Firmware (Factory default) 4.66 Phoenix Contact (TPMC821 V1.1)
4.40 Phoenix Contact (TPMC821 V1.0)
Operating Modes Asynchronous, bus synchronous, program synchronous, asynchronous with synchronization pulse
Addressing Modes Physical and logical
I/O Maximum 4096
Slave Devices Maximum 512
PCP Devices Maximum 62
Non-volatile Parameterization Yes
PDP Memory 384 Kbyte
INTERBUS I/O RS485, optically isolated, DB9 female connector (front panel)
Serial Diagnostic Interface RS232, 8 pin Mod. JACK (front panel)
Diagnostic LEDs RDY/RUN, FAIL, BSA, PF, HF (front panel)
Power Requirements +5V: 1.3A max.; +3.3V: 160mA max.
Temperature Range Operating: 0° C to +70° C
Storage: -45° C to +125° C
Weight 80 g
Humidity 5 – 95% non-condensing
MTBF 260 000 h




Local MC68332-20; original Generation 4 INTERBUS firmware of Phoenix; up to 512 I/O modules with up to 4096 I/O points and up to 62 PCP devices


PIM I/O Module with 50 pin Connector


Device Driver for INTERBUS Master G4 Boards

Data Sheet

Data Sheet

Data Sheet - Issue 1.1.1

User Manual

User Manual - Issue 1.1.7