3.11 Using The Battery Backup
What the battery
backup does
Should the AC power to the system be interrupted, one external battery assembly
provides 1.0 hour of operation for a fully loaded system (for information on
battery backup time using expansion cabinets, see the section below, “How to
calculate battery backup time”).
During AC operation, the external battery assembly accepts re-charging current to
maintain the voltage potential of its batteries at an operational level. The
measured voltage the battery backup is 34.5 volts when the batteries are fully
charged.
Battery backup
components
You can only install one battery backup per system. The battery backup
assembly includes the following items:
•
Batteries: Five 6-volt, 50 ampere-hour, (Comdial product code BT000-141),
charger unit and interface cables.
•
Metal enclosure with wire harness, includes combination circuit breaker,
on/off switch.
How to
calculate
backup time
Calculate the minimum battery backup time provided by a battery backup
assembly to a fully configured DXP
Plus system using the following formula:
T = Back-up time in hours
K = 0.85 (Constant)
e = 50 (ampere-hour capacity of battery backup assembly)
N = Total number of stations
Example:
Assume that you have installed a DXP Plus with three cabinets supporting 472
telephones and containing one line board along with a battery backup assembly to
provide back-up power.
NOTE: The external battery assembly requires a maximum of 10 hours to completely re-charge to full potential
after it has been completely discharged and, in some cases, when initially installed.
T =
Ke
1 + [(0.084) (N)]
T =
(.82)(50)
41.0
1 + [(0.084) (472)]
=
40.65
= 1.0 Hour
GCA40–130
DXP Plus General Description
26 – Reviewing The Hardware
Содержание DXP Plus Series
Страница 1: ...Digital Communications System R ...
Страница 363: ...Automatic Call Distributor Technical Manual R QuickQ DXP ...
Страница 424: ...Automatic Call Distributor System Manager s Guide R QuickQ DXP ...
Страница 500: ...Wrap up Time 1 6 Wrapping Up A Call 4 3 Z Zoom Box A 2 GCA70 271 Index I 3 ...
Страница 628: ...Interconnecting The VMI X Installing And Programming For ExecuMail IMI89 206 Installing And Programming For ExecuMail 5 ...
Страница 677: ...Connecting The Equipment Installing And Programming The OPX X IMI89 209 Installing The OPX X 7 ...
Страница 728: ...DP I I I I and FX Series Digital Communications Systems Understanding The Visual Man Machine Interface COMDlA ...
Страница 1112: ...9 08 8 90 1 13 4 78 3 94 UNIS029 TAB003 PLS page 6 GCA40 130 DXP Plus General Description 11B Telephone Features ...