Environmental Requirements - AT&T MERLIN LEGEND Pocket Reference

Environmental Requirements

Control Unit
Fully loaded basic carrier
Fully loaded 2-carrier
Fully loaded 3-carrier
Mean Time Between Failures
(mean or average time the
product/system is expected
to operate before any type of
failure occurs)
Mean Time Between Outages
(mean or average time the system
is expected to operate before a
failure affecting more than 25%
of stations or lines for more than
15 seconds occurs)
Backboard
Without
SYSTIMAX™
Small system
Large system
With SYSTIMAX
Small system
Large system
Backboard Mounting Hardware Requirements
Wood surface
Concrete surface, brick, cinder block
Plaster, plasterboard
Sheet-metal surface
Hardware should have a combined pullout force of 650 Ibs.
When mounting to sheet-metal walls, attach to structural
members.
Location
Within 5 ft of dedicated AC power outlet (1 plug per carrier)
Within 1000 cable feet of telephones
Heat Dissipation
Fully loaded basic carrier
Fully loaded 2-carrier
Fully loaded 3-carrier
Power Requirements
Basic carrier 117 VAC
2-carrier
117 VAC
3-carrier
117 VAC
Page 2
45 lbs
90 Ibs
135 Ibs
4' W x 3' H x 3/4" D
6' W x 3' H x 3/4" D
5' W x 4' H x 3/4" D
7' W x 4' H x 3/4" D
500 Btu/hr
1000 Btu/hr
1500 Btu/hr
60 Hz ± 5% 3A
60 Hz ± 5% 6A
60 Hz ± 5% 9A
14" W x 23" H x 12" D
25" W x 23" H x 12" D
37" W x 23" H x 12" D
2.1 years
4.0 years
Wood screws
Masonry anchors
Toggle bolts
Sheet-metal screws