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Commissioning the system
6.1
The following sections can be used as a guide to testing the system prior
to handover of the 2+8 to the customer. These are:
Commissioning procedure with lines connected (maintenance
•
replacement of CCU).
Commissioning procedure prior to lines being connected. The exchange
•
line ports will be connected at a later stage following installation (new
system prior to PCD.
Commissioning procedure for systems with no lines connected. No
•
direct or indirect connection to the Public Switched Telephone Network.
System is used as an entirely independent switching system using the
extensions only.
Commissioning procedure with line
6.1.1
connected
Fit and appropriately mark Telephone and Systemphone labels at all
1
equipped extensions.
Ensure that the MF
2
are set as required.
Note
If the System phones are set to Loop-disconnect signalling, keying* after
going off-hook will switch the System phone to MF signalling. Going
on-hook will reset the System phone to LD signalling.
Set switch SS to the down position in the configuration Switch bank SWl.
3
Also ensure that all switches in all four banks are set as required (see
Section 2.1.13,
4
Replace the CCU cover and follow the instructions in Section 4.1,
precautions,
Check that the System mode (PBX, Keysystem and Exclusive line) and
5
the extensions configured for call barring are correct and operational.
6
At each System phone extension check that the Loudspeaking facility on
System phones functions correctly by pressing the LOUDSPEAKER key or
EXTENSION key. Ensure that internal dial tone is heard and that the
volume can be adjusted.
Establish two simultaneous internal calls to check both speech paths are
7
operational. Intercom busy LED will be lit when the two internal calls are
established.
At each System phone extension check that at least one external
8
telephone number can be stored and transmitted.
Seize each external line from each extension using all methods available.
9
Ensure that external dial tone is heard and that good transmission is
possible in both directions.
10
At each telephone extension check that the exchange line can be
accessed and put on hold by pressing the RECALL key on that telephone.
At extension 20, check that both exchange lines can be accessed and put
on hold by pressing the RECALL key on that telephone.
1371
3 (4/91)
TPU
Issue
/LD
signalling of the System phones and telephones
Setting the
CCU
D!Lswitches).
and switch on.
Commissioning the sys t em
Safety
6-1
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