Phoenix Contact
ST-REL3-SG-B 24/21/M
Phoenix Contact
System connectors - FLKM 50-PA-AB/IBN
Mitel Networks
ISO-CMOS ST-BUS™ FAMILY Digital Switch
Fujitsu
8-bit Proprietary Microcontroller
Fujitsu
(MB89850 / MB89860 Series) 8-bit Proprietary Microcontroller
Mitel Networks
ISO-CMOS ST-BUS™ FAMILY Digital Switch