Search this site
Skip to main content
Skip to navigation
BT Herald and Pentara PABX
Herald Home
Programming Software
Your Stories
My Other Websites
Herald 4 port 4 wire Terminal Card
Exchange Line Interface Card
Tone Generator Card
8 Circuit Extension Card - 2 wire
Benchmark Dates
Customer Documentation
Document Library
Eprom Images
Files
Old Monarch Docs page please goto new page
Options Mother and daughter boards
Processor Card
Project updates
Shelf
BT Herald and Pentara PABX
8 Circuit Extension Card - 2 wire
Workshop Manual for 8 x 2 wire extension card
Google Sites
Report abuse
Page details
Page updated
Google Sites
Report abuse