2 Installing the MDW 9040 Pocket Phone System Installation Procedures for Dual Radio
MDW 9040 Wireless Pocket Phone Installation and Use,
503-801-19018 Issue 2,February 2001
Installation of the MDW 9040 in a dual zone configuration is the same as that for the single zone, except that the
installation of a second radio module is required. Like the single zone MDW 9040, the dual zone can be installed
in a single user configuration or a multiple user configuration with up to the same number of handsets, that is, 18
handsets per zone for key systems such as PARTNER or MERLIN and up to 30 handsets for PBX systems such
as MERLIN MAGIX and MERLIN LEGEND (in PBX mode) and DEFINITY.
When installing the MDW 9040 in a dual zone configuration in the same building, you should eliminate or limit
how much zone overlap there is between Zone 1 and Zone 2, as shown in Figure 7. In the ideal dual zone
installation, there is no overlap or interference between radio modules. If there is minimal overlap, there will be
some interference between radio modules. If the zones overlap too much, there will be interference between the
two radio module installations, causing the following: bad voice quality and/or the handset is rendered
inoperable (“ranges”).
General Guidelines
Regarding Zone
Overlaps
•Separate the radio modules so that you have continual coverage, yet no overlap
(recommended) or minimal overlap between zones.
•If there is an overlap condition, poor voice quality could occur and the Range icon
may begin flashing in the handset display. If this occurs, move the radio module
further from the original installation position.
Figure 7. Ideal Dual Zone Installation
Dual Zone Installation
Procedures To install multiple radio modules for dual zone operation:
1 Rem ove each rad io mod ule fro m its sh ipping box and place them in the location s
you have selected (for wall-mounting instructions, see “Wall-Mounting the Dual
Radio Module” on page 14). The radio modules must be placed in separate zones.
2 For the first handset to be connected to the radio module in Zone 1, connect a 14
foot (4.2 m) Station Line Cord (provided) to Line 1 on the radio module and then
connect the other end of the cord to a station port at the main system. If a second
handset is to be connected to the radio module, connect another Station Line Cord
to Line 2 on the radio module and then connect the other end of that cord to
another station port.
3 Repeat Step 2 for the second radio module in Zone 1.
4 Verify that both radio modules have power and that the status LED information is
correct. See “Dual Radio Module Light Indications” on page 10.
Approx 1000 feet
Recommended Dual Zone Installation - No Overlap of Zones,
No Interference or Operational Issues.