Panasonic DBS 40, Руководство пользователя

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Section
4. Trunks and Lines
Connect the test set across the tip and ring of the trunk to be tested.
the test set in the “monitor” position, apply ground to the ring side of the
trunk.
If you hear dial tone, the polarity of the trunk is okay, and you can switch
the test set to the “talk” mode to test the voice path.
If you do not hear dial tone, ground the tip side of the trunk. If you
receive dial tone when grounding the tip side, polarity is reversed.
Interface
Guidelines
Read the following guidelines before beginning installation. Installation
instructions begin on page 4-2 1.
Hardware Requirements
l
The requires the following DBS hardware.
Table Hardware requirements for single-cabinet systems
CPC-B 4.0 or
Trunk Card MDF Card Sync Unit
Higher
(VB-43421)
(VB-4356 1) (VB-43562) (VB-43563)
1 1
1
1
(See Note 1.)
(See Notes 2 and 3.)
Notes:
1. Version
1.3 or higher of Bus Processor Unit (BPU) chip is required for
2. An MFR card is required for if DTMF signaling is used. If is provided through
DP signaling, an MFR card is not
3. SCC-B with ROM 1.3 or higher is required if the central does not provide dial
DBS-70-300 DBS Manual Issued 8/t/95
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