Chapter 7. SpecificationsSection 300-Installation
| Part No. | Description | Quantity | | |
| | | | | |
| | | DBS 40 | DBS 72 | DBS 96 |
| | | | | |
| | Phone Options | | | |
| | | | | |
| VB-43310 | 24-key expansion module (EM24) | 16 | 28 | 36 |
| | | | | |
| VB-43320 | 72-key DSS/BLF module (DSS/72) | CPC-A and CPC-AII: 4 |
| | | CPC-B: 8 (up to 4 can be assigned |
| | | as DSS/72s; up to 4 can be |
| | | assigned as Attendant Consoles) |
| | | | | |
| VB-43884 | 7 ft. handset cord | | | |
| | | | | |
| VB-43885 | 15 ft. handset cord | 32 | 56 | 72 |
| | |
| VB-43886 | 25 ft. handset cord |
| | | |
| | | | | |
| VB-43890 | K-type handset | | | |
| | | | | |
| | Printed Circuit Cards | | | |
| | | | | |
| VB-43110 | Cable kit for 2-system connection | N/A | N/A | N/A |
| | | | | |
| VB-43410 | Call processor card (CPC-A) | | | |
| | | | | |
| VB-43411 | Call processor card (CPC-B) | 1 | 1 | 1 |
| | | | | |
| VB-43412 | Call processor card (CPC-AII) | | | |
| | | | | |
| VB-43420 | Service circuit card (SCC-A) | 1 | 1 | 1 |
| | |
| VB-43421 | Service circuit card (SCC-B) |
| | | |
| | | | | |
| VB-43431 | DTMF signal receiver for 8 SLT lines (MFR/ | 1 | 1 | 1 |
| | 8) |
| | | | |
| | | | | |
| VB-43510 | 4-port loop-start trunk card | | | |
| | (L-TRK/4) | | | |
| | | | | |
| VB-43511 | 8-port loop-start trunk card | | | |
| | (L-TRK/8) | 2 | 3 | 4 |
| | | | | |
| VB-43541 | Direct-inward-dialing trunk card (DID) | | | |
| | | | | |
| VB-43531 | 8-port ground-start trunk card | | | |
| | (G-TRK/8) | | | |
| | | | | |
| VB-43561 | T1 Interface | 1 | 1 | 1 |
| | | | | |
| VB-43562 | T1 MDF card | 1 | 1 | 1 |
| | | | | |
| VB-43563 | T1 Sync Unit | 1 | 1 | 1 |
| | | | | |
| VB-43611 | 8-port digital extension card (DEC) | 4 | 7 | 9 |
| | | | | |
| VB-43621 | 8-port analog extension card (AEC) | 3 | 4 | 4 |
| | | | | |
| | | |
7-8 | DBS Manual - Revised April 2000 | DBS-2.3/9.2-300 |
