|
APPROVAL No. S/2761/3/G/500568
POET is a
'manager-secretary' communication system consisting of a pair of telephone terminals each
connected to a PBX extension line and linked together by a dedicated pair of wires.
The two terminals are similar in appearance and both come with a plug-top type mains
transformer, one terminal (designated the Manager terminal) has an additional button
marked "do not disturb".
POET is designed for use on extensions of PABXs to offer the following:-
-
Incoming and outgoing calls.
-
Hands free telephony and monitor facilities.
-
Direct intercom link between the pair of POET terminals with 'buzz' and other extension
line busy/free LED indication.
-
Single button operation to activate host PABX hold, transfer, divert, enquiry,
conference and ring back facilities (depending on type of host PABX).
-
20 number store. pause and recall may also be stored.
-
Last number redial.
-
Liquid Crystal Display unit/clock.
-
Adjustable volume controls for hands-free loudspeaker.
-
Adjustable volume control for tone caller.
Made by Dialatron Ltd
APPROVAL STATUS
POET terminals are approved as simple telephones to be used only on PBX extensions.
POET Manager and Secretary terminals are linked by a two wire intercom circuit, this may
be by a linking cable or via the ICD depending on local circumstances. A 13Amp Mains
socket outlet suitable for use with a plug-top type transformer is required close to each
POET terminal phone socket.
INSTALLATION
POET terminals are supplied with a 6 way line cord terminated by a plug for use in phone
sockets as shown below. Line Jack terminals 1 and 6 of the 'Manager' terminal must be
linked to Line Jack terminals 1 and 6 of the 'Secretary' terminal via an `intercom pair'.
This may be provided by running a local cable or using the internal cable distribution as
appropriate.
Installation of POET terminals involves:-
-
Installation of batteries and Connection to line and power.
-
Setting the two switches on the rear of the terminal to set the signalling and recall
conditions of the host PABX.
-
Identify type of host PABX.
-
Identify extension number of partner terminal.*
-
Set the clock.
Set host PABX specific facilities (if used on other than Monarch, DX, Regent, Viceroy
or Kinsman PABX).
*NB. POET terminals will appear 'dead' until they have been programmed for this.
MAINTENANCE
Functional testing should include the following tests:-
| Symptom |
Action |
Test |
|
No display |
Check power unit is plugged in. |
OK. |
|
No display |
Disconnect power and line, remove batteries. Replace power unit and batteries, reprogram. |
Battery lock-up. |
|
No display |
Replace power unit. |
Power unit fault. |
|
No display |
Replace POET terminal. |
POET terminal fault. |
|
Terminal not working |
Carry out tests 1 and 2 above but without batteries, reprogram and test.
Display only shows clock or garbage. |
Low batteries. |
| No dial tone |
Check fine jack and cabling, substitute POET terminal with test telephone if necessary. |
Speech pair/PABX fault. |
| No dial tone |
Reprogram terminal. |
Programming error or reset. |
| No dial tone |
Check line cord, handset and cord replace as necessary. Replace POET terminal if necessary. |
POET terminal fault. |
| Unable to |
Check recall and signalling switches on rear of terminal. |
Switch settings incorrect. |
| Unable to buzz |
Check intercom pair and line cord continuity. Poet terminals will send low level MF tones to each other until intercom pair is restored. |
Make intercom calls. |
WARRANTY
New POET units will carry a manufacturers 24 month warranty from date of manufacture as
labelled on the base of the unit (date of manufacture label comprises a four digit number
indicating year and week of manufacture).
PARTS
|
DESCRIPTION |
ITEM CODE |
|
POET system complete |
870301 |
|
line cord |
870302 |
|
terminal handset and cord |
870303 |
|
Power unit |
870304 |
TESTING
PBX extension pair:-
Idle - Normal telephone conditions, no on-hook current drawn.
Seized/Held - Normal press button telephone loop.
Intercom pair:-
No standing DC conditions, intercom pair is DC isolated at the telephone and is not
polarity conscious.
The intercom pair may be checked by monitoring with a test telephone. MF tones will be
heard when POET terminals signal each other and intercom speech can be monitored.
ADDITIONAL INFORMATION
Under mains failure conditions (with batteries installed) POET terminals may make outgoing
and receive incoming calls but Featurephone facilities, including intercom, will not
function.
When set for Earth-recall, pressing the 'R' button will cause the POET terminal to send a
500 millisecond earth recall signal to the host PBX, regardless of how long the button is
pressed.
A set of batteries is provided with POET terminals on installation, subsequent battery
replacement is the customers responsibility. Battery life under normal conditions is
approximately 1-2 years, the display will show 'BATTERY LOW' when batteries have nearly
expired. If batteries are allowed to discharge completely then POET terminals will only be
able to receive incoming calls.
The batteries are non-rechargeable and should provide memory protection for a total of
over 72 hours in the event of mains failures.
British Telecommunications Engineering
Volume 7, Part 3, October 1988
Product News
BT has announced the launch of Poet, a two-line two extension
telephone system specifically designed to serve the needs of the
manager/secretary combination.
The Poet communication system consists of two sleek and compact telephone
terminals, approved for use on a large number of compatible BT PBXs, which plug
in to existing extension sockets and are simply linked by a pair of wires.
In addition to this, a plug-in mains power unit is supplied.
As the system is specifically designed for use on PBX
extensions and not on direct exchange lines, it has no inherent switching
capability. However, a simple single-button operation is all that is necessary
to access the host PBX.
The Poet telephone system offers a wide range of special features to assist and
increase the efficiency of the
manager/secretary team. The multi-button key telephones work only in pairs and
are identical in appearance, facilities and operation except for an additional
do not disturb button on the manager's terminal, which eliminates interruption
from incoming calls or the intercom. Each of the terminals can make and
receive calls and feature loud-speech and intercom facilities. A powerful
microphone and built-in loudspeaker enables handsfree working, particularly
useful when taking notes of conversations.
Other features of the system include call transfer, call hold, divert and
conference facilities as well as automatic
recall for engaged numbers and repertory dialling. A 20 number memory store is
accessed through a simple one-button operation. Poet can also be programmed to provide single-key access to
other commonly used facilities on the central keyboard.
Programming is simple and no complicated coding is necessary. Security is
ensured with a battery memory back-up in case of power failure. The liquid
crystal display on each terminal provides an "at a glance" check on all numbers
dialed and numbers stored as well as a "battery low" signal.
|