Specifications

December 2008 Page 20–5
Chapter 20. Addressable Two-Wire Voice (PBW/PBT) Module
20
using the same procedure. If desired, all the
stations on the network can join the conference.
To ring all stations on the network simultane-
ously from a PBX extension, lift the handset from
the cradle. When you hear the “PBX” dial tone,
dial the three-digit phone number for the “PBT”
station. After a single ring, you will hear the
“network” dial tone. Dial “*11” (star one one).
This rings all the stations on the network.
Someone can answer by picking up any of the
ringing phones.
This feature comes in handy when you are trying
to reach someone, but do not know which station
they are visiting at the moment.
20.3 Installation
Typically, when installing an Addressable Two-
Wire Voice (PBW/PBT) Module, you will be
setting up a network (i.e., installing multiple PBW
modules for an internal orderwire network or
multiple PBW modules and a PBT module for an
internal orderwire network connected to a PBX).
We recommend that you perform both the
complete installation procedure (1–3 below) and
the acceptance tests for each module/chassis
before moving on to the next. Because the accep-
tance tests require at least two modules/chassis
(see “Acceptance Tests” later in this chapter),
however, you must install at least two before
beginning testing. You can then test each addi-
tional module as you install it.
Whether you are setting up a network or installing
a single module (e.g., adding an additional station
to your network), use the installation procedure
described below.
Each Addressable Two-Wire Voice (PBW/PBT)
Module occupies one physical module slot in the
FOCUS chassis. The module requires only one
time slot on the T1/E1 line.
The complete installation procedure for each
PBW/PBT module includes:
1. Installing the module and its rear interface
module in the chassis and connecting the
telephone or PBX (see “Hardware
Installation and Connections”)
2. Assigning the module a three-digit phone
number (see “Software Settings”)
3. Assigning the module a DS0 channel, or
time slot, in each direction (see “DS0 Time
Slot Assignment”)
To set up a network, you must complete the above
for each PBW/PBT module in the network. You
must also enable the “pass through” signaling (see
“Signaling Channel Assignment”) for any chassis
within your network that does not have a
PBW/PBT module.
20.3.1 Hardware Installation and
Connections
Installing and connecting the hardware includes
inserting the module into the chassis, attaching its
rear interface module, and connecting the
telephone or PBX.
Before installing each module, make sure that:
• The FOCUS chassis is set up, energized,
and operational, with all necessary
common equipment (see Chapter 3)
• The FOCUS Configuration Software (FCS)
has been installed on your computer (see
Chapter 3)
• Acceptance tests for the FOCUS chassis
and all previously installed equipment have
been done to rule out invalid test results for
this module
• FCS is up and running and your computer
is connected to the FOCUS chassis
To install either a PBW or PBT type Addressable
Two-Wire Voice Module, complete these steps.
(For complete instructions on specific FCS proce-
dures, please refer to the FCS online help facility.)
1. Bring the FOCUS chassis “on line”.
Click on the “Online” speed button
.
This uploads to the FCS the current status,
settings, operating statistics, etc., for the
FOCUS chassis — and the Addressable Two-
Wire Voice Module.