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Appendix E: M3110, M3310, and M3820 telephones Page 491 of 504
Telephones and Consoles Description, Installation, and Operation
120 V transformer The following minimum specifications must be met by
this transformer:
240 V transformer The following minimum specifications have to be met by
this transformer:
Note 1: You cannot wall mount the telephone over the wall jack when
using a transformer because of the size of the RJ-11 adapter. Hang it
above or to the side of the jack and run the line and power cords to it.
Note 2: The above-mentioned transformers can also be used with outlets
identified as 110V or 220V.
Closet Power Supply
Closet power can be obtained from an AC transformer for loops of 100 ft.
(30 m) or less, or a DC transformer for loop lengths of 650 ft. (198 m) or less.
An equivalent power source can be used but must be UL listed to provide
isolation of outputs to the terminal. See Figure 103.
Input voltage 120 V AC/60 Hz
No load output voltage 29 V AC maximum
Voltage at rated current 26.7 V AC
minimum
Rated load current 700 mA
Input voltage 240 V AC/50 Hz
No load output voltage 29 V AC maximum
Voltage at rated current 26.7 V AC
minimum
Rated load current 700 mA
WARNING
When using closet power, do not plug the TELADAPT
connector into any equipment other than the Meridian
digital telephone, as damage to equipment may result.