NEC DS1000 Correspondence Course Workbook page 11

Door Box, Analog (P/N 92245)
Door Box, Digital (P/N 80560)
NEC America
DS1000/2000 Correspondence Course
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.
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.
Station Equipment
DS1000/2000 Workbook 11