Panasonic FS-CM1
This page was last modified 17:37, 20 September 2020 by Mars2000you. Based on work by Rderooy.



The Panasonic FS-CM1 is a full duplex 300/1200bps modem cartridge released by Panasonic, it has a built-in RS-232C interface and contains

  • a ROM with MSX-Modem BASIC and the communication software MSX-TELCOM, written by ASCII and Matsushita (it's the same version as in the FS-A1FM computer)
  • a Kanji-ROM Level 1 (JIS1)
  • a 8kB SRAM (probably NEC D4464C-15L chip)

The MSX-TELCOM menu includes 4 options:

  • 1 - Modem Settings and Phone Book
  • 2 - Access to The LINKS network
  • 3 - Documents Management
  • 4 - MSX-BASIC.

From MSX-BASIC, it is possible to access the modem settings and the phone book with CALL TELCOM or _TELCOM.

Panasonic released two models of this modem: one with 'Panasonic' and 'FS-CM1" in red color, one with these texts in yellow color.

Brand Panasonic
Type FS-CM1
Year 1987
Region Japan
Official price ¥32,800
Package content
Emulation ROM dump needed. See this thread for details



Panasonic FS-CM1 box
Panasonic FS-CM1 'red'
Panasonic FS-CM1 box (back)
Panasonic FS-CM1 with box
Panasonic FS-CM1 box and content
Panasonic FS-CM1 right side
Panasonic FS-CM1 underside
Panasonic FS-CM1 'yellow'
Panasonic FS-CM1 User's manual
Panasonic FS-CM1 PCB
Panasonic FS-CM1 PCB underside
Panasonic FS-CM1 Infos about MSX networks


MSX-TELCOM Intro screen
MSX-TELCOM Modem Settings and Phone Book
MSX-TELCOM Access to 'The LINKS'
MSX-TELCOM Documents Management