LTPH-SM-1052-04
Appendix A - System Specifications
HMS-358 List 5 and List 6
July 14, 2002
71
E
NVIRONMENTAL
S
PECIFICATIONS
The HMS-358 is designed to meet NEBS CO requirements.
P
HYSICAL
S
PECIFICATIONS
P
OWER
S
PECIFICATIONS
System Operating Temperatures
Minimum/Maximum Ranges
32°F to 122°F (0°C to +50°C)
-40°F to 149°F (-40°C to +65°C)
Line Units
All
All
Mux Units
HXU-357 List 1
HXU-359 List 1
All others
HMUs
HMU-319 List 7A
HMU-319 List 9
Operational Altitude
197 ft. (60m) below sea level to 13,000 ft. (3962m) above
sea level
Relative Humidity
Operational
5% to 85% non-condensing
Short-term
5% to 90%
Non-operating
5% to 95%
Electromagnetic Compatibility
FCC Part 15, Class A, Subpart J; Bell TR EOP 000063,
Section 4.10
Dimensions
12-
1
/
8
” H x 21-
3
/
8
” W x 11-
3
/
4
” D (30.8 x 54.3 x 30.5 cm)
Weight (unloaded)
37 lbs. (16.78 kg)
Chassis per 7-foot Rack
4
DS1 Capacity
28 lines
Power Feeds
-48 Vdc, A and B
CO Supply
-48 Vdc nominal (-41.5 Vdc to -56.5 Vdc)
Line Power to HDSL/HDSL2/HDSL4
Remote Unit
-180 Vdc or ±122 Vdc