Panasonic VB-44210G User Manual page 101

Section 700 - Operation
- 1 T1 Trunk Card (VB-43561
- 1 T1 MDF Card (VB-43562)
- 1 Sync Card (VB-43563).
• The installer must provide a Channel Service Unit (CSU) that complies
Considerations
• Fractional T1 can be used when fewer than 24 T1 trunks are needed.
• Though each T1 Interface provides 24 trunk channels, T1 trunks do not
• The current version of the T1 supports voice communications only. Data
DBS-2.3/9.2-700
In addition, one T1 Cable (VB-43564) is required to install a T1 in a double
cabinet if the T1 card is located in the slave cabinet.
To install two T1s in a double cabinet, you must have 2 T1 Trunk Cards and
2 T1 MDF Cards.
with FCC Part 15 and Part 68. The CSU is installed between the DBS and
the public network. The CSU provides alarm, diagnostic, and monitoring
functions, as well as network protection.
Fractional T1 allows you to use only a portion of the 24 channels provided
on the T1 card.
increase the overall trunk capacity of the DBS. Each T1 channel subtracts
from the total number of analog trunks that can be installed. Furthermore,
the number of analog trunks that can be used may be decremented in
quantities of 1 or 8.
For instance, if you are installing a T1 in a DBS 96 and you only want to
use 12 T1 channels, the logical number of analog trunks that would be
available is 20 (32 - 12 = 20).
With CPC-B 5.00 and later, the number of analog trunks available are
decremented in quantities of 1. With CPC-B earlier than 5.00, the number
of analog trunks must be decremented in quantities of 8; the actual number
of analog trunks that can be used is 16:
(32 total trunks - 16 (two 8-trunk increments) = 16.)
can be transmitted only if it reaches the T1 in analog form. Examples of
analog data that can be transmitted over the T1 include fax transmissions
and PC files that have been converted into analog form using a modem.
DBS Manual - Revised April 2000
Chapter 3. System Features
Page 3-55