Filter
Top Products
Introduction
DIGITAL 2T-CCMHA-CB Central Office Memory Channel Hub Installation/Service Guide
1–5
1.3 Specifications
Table 1-1 contains the physical, environmental, and electrical specifications for the 2T-
CCMHA-CB central office Memory Channel hub.
Table 1-1 2T-CCMHA-CB Central Office Memory Channel Hub Specifications
Physical Characteristics
Chassis
Weight 13.6 kg (30 lb.)
Length 40.64 cm (16 in.)
Width 48.26 cm (19.0 in.)
Height 17.78 cm (7.00 in.)
Environmental Requirements
Temperature range
Operating 0°C to 40°C (32°F to 104°F)
Non-Operating -20°C to 95°C (-4°F to 203°F)
Temperature change rate 11°C/hr (20°F/hr) maximum
Wet bulb temperature
(maximum)
28°C (82°F)
Dew point temperature
(minimum)
2°C (36°F)
Relative humidity 10% to 95% (noncondensing)
Altitude 60 m to 3050 m (-200 ft to 10,000 ft)
Electrical Requirements
Nominal voltage -48 Vdc
Operational voltage range -36 to -72 Vdc
Input current (maximum) 1.25 A at -48 Vdc
Input power 60 W