DS1000/2000 Correspondence Course
Station Equipment
NEC America DS1000/2000 Workbook ◆ 11
Door Box, Analog (P/N 92245)
● On the DS1000 system only,
the maximum per expanded
system is two. When not
using the expansion card,
only one is permitted.
● Connects to modular jacks in
the cabinet.
● A weather-tight unit, with an
operating temperature range
of -20 to 60 degrees C (4 to
140 degrees F) and a relative
humidity of 10-95%, non-
condensing.
Door Box, Digital (P/N 80560)
● Maximum per system is lim-
ited by the system load factor
● Uses one digital station port,
● A weather-tight unit, with an
operating temperature range
of 0 to 45 degrees C (32 to
113 degrees F) and a relative
humidity of 10-95%, non-
condensing. It is not intended
for outdoor installation.