Alcatel-Lucent 7750 SR-a4, Installation Manual, Page: 52 / 232

System Specifications
52 7750 SR-a4 and SR-a8 Installation Guide
Notes:
1. Short-term refers to no more than 96 consecutive hours per occurrence and no more than 15 occurrences in
a one-year period.
2. Pollution degree is as defined in IEC 60950. Pollution Degree 2 applies where there is only non-conductive
pollution that might temporarily become conductive due to occasional condensation.
Power Supply Unit Module Specifications
Rated voltage (DC) –48 VDC
Operating voltage range (DC) –40 to –72 VDC
Rated voltage (AC) 120 or 240 VAC
Operating voltage range (AC) 90 to 264 VAC
Table 16: 7750 SR-a8 Environmental Specifications (Continued)
Parameter Description
Table 17: AC PSU Specifications
Parameter Description
Dimensions (H x W x D) 3.4 x 7.78 x 1.59 in. (8.64 x 19.77 x 4.05 cm)
Weight 2.33 lb (1.06 kg)
Voltage range 90 to 264 VAC
Maximum current 12 A
Efficiency 93%
Table 18: –48 VDC PSU Specifications
Parameter Description
Dimensions (H x W x D) 3.4 x 7.78 x 1.57 in. (8.6 x 19.77 x 3.99 cm)
Weight 2.44 lb (1.108 kg)
Voltage range –40 to –72 VDC
Maximum current 40 A
Efficiency 93%