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Section 300-Installation
Chapter 4. Trunks and Lines
DBS-2.3/9.2-300
DBS Manual - Revised April 2000
4-11
Connect the test set across the tip and ring of the trunk to be tested. With
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.
T1 Interface
Guidelines
Read the following guidelines before beginning T1 installation. Installation
instructions begin on page 4-21.
Hardware Requirements
• The T1 requires the following DBS hardware.
Table 4-6. T1 Hardware requirements for single-cabinet systems
CPC-B 4.0 or
Higher
(VB-43411)
SCC-B
(VB-43421)
T1 Trunk Card
(VB-43561)
T1 MDF Card
(VB-43562)
Sync Unit
(VB-43563)
1
(See Note 1.)
1
(See Notes 2 and 3.)
1
1
1
Notes:
1. Version 1.3 or higher of the Bus Processor Unit (BPU) chip is required for T1.
2. An MFR card is required for DID/DNIS if DTMF signaling is used. If DID/DNIS is provided through
DP signaling, an MFR card is not required.
3. SCC-B with ROM 1.3 or higher is required if the central office does not provide T1 dial tone.
Содержание CPC-EX
Страница 12: ...About This Manual Section 300 Installation xii DBS Manual Revised April 2000 DBS 2 3 9 2 300 ...
Страница 18: ...Chapter 1 Requirements Section 300 Installation 1 6 DBS Manual Revised April 2000 DBS 2 3 9 2 300 ...
Страница 20: ...2 2 DBS Manual Revised April 2000 DBS 2 3 9 2 300 ...
Страница 28: ...Chapter 2 System Overview Section 300 Installation 2 10 DBS Manual Revised April 2000 DBS 2 3 9 2 300 ...
Страница 30: ...3 2 DBS Manual Revised April 2000 DBS 2 3 9 2 300 ...
Страница 48: ...Chapter 3 Cabinet Installation Section 300 Installation 3 20 DBS Manual Revised April 2000 DBS 2 3 9 2 300 ...
Страница 50: ...4 2 DBS Manual Revised April 2000 DBS 2 3 9 2 300 ...
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Страница 96: ...5 2 DBS Manual Revised April 2000 DBS 2 3 9 2 300 ...
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Страница 160: ...Chapter 7 Specifications Section 300 Installation 7 18 DBS Manual Revised April 2000 DBS 2 3 9 2 300 ...
Страница 204: ...Index Section 300 Installation Index 8 DBS Manual Revised April 2000 DBS 2 3 9 2 300 ...