STARPLUS STSe Key System, Installation Manual

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BKSU & Main Board Unit Assembly 3-11
Chapter 3 - Installation
STARPLUS STSe - Installation Manual August 2005
Digital Telephone Interface Board (built-in)
The MBU of the BKSU contains a built-in Digital Telephone Interface Board (DTIB) which
provides digital voice and data communications to/from digital telephones. The DTIB
provides the interface to eight digital telephones. The built-in DTIB is non-removable and
does not physically resemble the optional DTIB. It is located in slot 0 on the MBU. The location
of slot 0 is an “L” shape that runs vertically along the left side of slot 7 and horizontally across
the base of the MBU. Additional DTIBs can be installed to expand the capacity for digital
telephones. Refer to
“Digital Telephone Interface Board” on page 3-13 .
Loop Start CO Interface Board (with Caller ID)
The built-in Loop Start CO Interface Board (LCOB) supports up to four Loop Start Central Office
Lines and comes equipped with a Caller ID Unit (CIDU) to detect Caller ID information. The
built-in LCOB is non-removable and does not physically resemble the optional LCOB. It is
located in slot 1 on the MBU. The location of slot 1 is in the upper right section of the BKSU.
The CIDU provides four Caller ID interfaces for the Built-In LCOB.
Additional LCOBs can be added to provide for increased Loop Start CO Line capability. Refer to
“Loop Start CO Interface Board (with Caller ID)” on page 3-13 .
Figure 3-1: Built-In LCOB with CIDU
Installing CIDU to Built-In LCOB
The CIDU may already installed when you receive your BKSU. If not, use the following procedure
to install the CIDU:
1. Unpack the CIDU from its antistatic conductive bag.
2. Locate the CN2 and CN3 connectors on the CIDU.
3. Locate the CN18 and CN19 connectors on the built-in LCOB.
4. Position the CIDU so that the CN2 and CN3 connectors align with the CN18 and CN19,
and connectors on the built-in LCOB respectively.
5. Push the CIDU onto these connectors to seat it securely.
(Upper Right section of BKSU)
CID
U
CN 19
CN 18
CN 2
CN 3
Buil
t-
In
L
CO
B