NEC 1090001 DSX40 Key Service Unit (Refurbished)

Key Features:

• Mfr. Part #: 1090001
• NEC DSX Key service unit
• Initial 4 x 8 x 2
• Contains: central processor, power supply, (4) central office line ports, (8) DSX digital key telephone ports, (2) conventional analog telephone ports
• Also contains interface circuits for (2) analog door chime boxes (including relays)
• Maximum system capabilities:
• (8) lines x (24) digital stations x (2) analog stations
• (8) lines x (16) digital stations x (10) analog stations
• (8) lines x (8) digital stations x (18) analog stations
• Compatible with the 4 or 8 port DSX IntraMail (1091011 and 1091013) and the 4 or 8 port DSX IntraMail Pro (1091051 and 1091053)