
144 Chapter 11 Installing telephones and peripherals
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Central Answering Position (CAP/eCAP)
Create a Central Answering Position (CAP) that provides additional auto dial positions or
additional line appearances.
A CAP consists of a 7316E digital phone and from one to nine Key Indicator Modules (KIMs).
Each module provides 16 programmable keys with indicators. If the telephone is configured as an
eCAP, a maximum of four modules can be added (eKIMs). A 7316E+eKIM can support line
appearances, multiple appearances of a target line, and Hunt group designators in additional to
memory key programming on the eKIMs. A 7316E+KIM configuration that is not configured as
an eCAP can support up to nine ordinary KIMs (OKIMs). In this configuration, only memory
button programming is supported. A Supplementary Power Supply is required after the fifth
module is added. Programming note: The 7316E+eKIM does not support auto dial keys
programmed with Hunt group DNs.
The legacy CAP consists of an 7324 digital phone with one or two CAP modules. This
configuration requires a Supplementary Power Supply (SAPS) to support the additional modules.
For detailed configuration information, refer to the Programming Operations Guide. Also refer to
the CAP user card for instructions about using a CAP.
Telephone port and DN cross-reference
The media bay module that analog and digital telephones connect to dictates DNs and port
numbers. Use Table 37 to identify which port connects to each telephone. For future reference, put
a checkmark beside the ports where there are telephones installed.
Note: The following table is based on a system with three-digit DNs, with a start DN of
221. If your system has longer DNs, the system automatically adds a repeat of the first
digit for each additional DN length unit. i.e. 221 becomes 2221.
Appendix B, “Media bay module combinations,” on page 249 contains a blank table to use
if you changed the start DN on your system.
Double density: If a DS30 bus is set to double density, a second level of DNs and ports
become available, allowing 32 digital or analog telephones on a DS30 bus. On a default
system, bus 06 and 07 are set to Partial Double Density (PDD), and only the first level is
available to digital telephones. The second level remains designated as B2 channels, which
allows the legacy Companion system to operate on these two bus blocks. When the system
is set to Full Double Density, then all DS30 bus blocks have 32 B1 channels. In a FDD
system, Companion is not support.
Also, note on the tables below that DN numbering differs between systems that were
upgraded from BCM 2.5 software and systems that were new with BCM 3.0 or newer
software.
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