Chapter 2. System Overview
Printed Circuit Cards
The following table describes the printed circuit cards and other equipment
that can be used with the DBS. Also included are brief descriptions of each
card and the maximum number that can be installed in each cabinet.
Table 2-2. Printed circuit card descriptions and maximums
Part No.
Printed Circuit Cards and Other
VB-43110
Cable kit for 2-system connection
VB-43410
Call processor card (CPC-A)
VB-43411
Call processor card (CPC-B)
VB-43412
Call processor card (CPC-AII)
VB-43420
Service circuit card (SCC-A)
VB-43421
Service circuit card (SCC-B)
VB-43431
DTMF signal receiver for 8 SLT lines
(MFR/8)
VB-43510A
4-port loop-start trunk card (L-TRK/4)
VB-43511A
8-port loop-start trunk card (L-TRK/8)
VB-43541
8-port Direct-inward-dialing trunk card
(DID)
VB-43531
8-port ground-start trunk card (G-TRK/8)
VB-43561
T1 Interface
VB-43562
T1 MDF card
VB-43563
T1 Sync Unit
VB-43611
8-port digital extension card (DEC)
VB-43621A
8-port analog extension card (AEC)
VB-43120
Trunk expansion connector
VB-43121
Extension expansion connector
VB-43701
2-port Door box adaptor
VB-43705
Door box
VB-43711
1-port Extension-Based Door box adaptor
VB-43705
Door box
2-6
Equipment
Expansion Connectors
Doorbox Equipment (Trunk)
Doorbox Equipment (Extension)
DBS Manual - Revised April 2000
Section 300-Installation
Quantity
DBS 40
DBS 72
N/A
N/A
1
1
1
1
1
1
2
3
1
1
1
1
1
1
4
7
3
4
1
1
8*
12*
16*
24*
4
4
4
4
DBS 96
N/A
1
1
1
4
1
1
1
9
4
1
16*
32*
4
4
DBS-2.3/9.2-300