ESI IP Server 900, Руководство по установке оборудования, Страница: 31 / 34

IP Server 900 Hardware Installation Manual External Connections
H.6
Installing ESI’s Cordless Handsets
Note:
The IP Server 900 supports only the ESI Cordless Handset II models (
not
the original ESI Cordless
Handset models).
Each ESI Cordless Handset comes with:
• A
charger/cradle
to charge the Handset.
• An
AC adapter
for use with only the charger.
• A
base phone
to provide a digital interface between the ESI phone system and ESI Cordless Handset.
This base phone needs
no
AC power: if the Cordless Handset is
digital
, the base phone is
line-powered
;
if the Cordless Handset is
IP
, the base phone uses
Power over Ethernet
(PoE).
•
Wall-mount
(s), a
belt clip
, and a
Quick Reference Guide
.
Each ESI Cordless Handset is keyed to only one base phone and takes up one port (digital or IP) on a port card.
Base phone installation
Due to each site’s unique characteristics, the range and distance information we’ll provide herein is
only approximate.
Characteristics that
positively
affect performance:
•
Clear line-of-sight between the base phone and the Cordless Handset.
•
Base phone antenna pointed in its uppermost vertical position.
Characteristics that
negatively
affect performance:
•
Large amounts of metal shelving (such as in manufacturing or warehouse areas).
•
Close proximity to (within one mile of) a radio tower.
•
Concrete walls that divide spaces where Cordless Handsets are used (assuming the base phones are
in one location).
Don’t
install the base phone:
•
Close to a wall with metal studs.
•
On a metal wall.
•
Next to a device that emits RFI or EMI
1
— e.g. , a television, radio, computer, computer printer,
fluorescent light fixture, or fax machine.
•
Next to any other 900 MHz device — e.g. , a hand-held inventory control device.
•
In a ceiling that has foil-backed insulation.
•
Behind doors that typically are closed, tinted windows, one-way glass, or other areas that limit or
cut off transmission to the Cordless Handset.
Base phones must be installed at least 10 feet apart, regardless of whether the base phone is for the
small-model or large-model Cordless Handset.
Don’t
install more than six base phones in one area
(such as a network room). Choose a location at least 30 feet away if more than six base phones are needed
in a building.
1
RFI is radio frequency interference. EMI is electromagnetic interference.