User's Manual

Appendix D: Product integrity Page 895 of 910
IP Line Description, Installation and Maintenance
Measurements of performance in regards to temperature and shock were
made under test conditions as described in Table 119.
Temperature-related conditions
Refer to Table 119 for a display of acceptable temperature and humidity
ranges for the Voice Gateway Media Card.
Table 119
Voice Gateway Media Card – environmental specifications
Specification Minimum Maximum
Normal Operation
Recommended 15° C 30° C
Relative humidity 20% 55% (non-
condensing)
Absolute 10 ° C 45° C
Relative humidity 20% to 80%
(non-condensing)
Short Term
(less than 72 hr)
–40° C 70° C
Rate of change Less than 1° C for every 3 minutes
Storage
Recommended –20° C 60° C
Relative humidity 5% 95%
(non-condensing)
–40° C to 70° C, non-condensing
Temperature Shock
In 3 minutes –40° C 25° C
In 3 minutes 70° C 25° C
–40° to 70° C, non-condensing