Digital Telephone Interface Board (Built-In); Loop Start Co Interface Board (With Caller Id); Installing Cidu To Built-In Lcob - STARPLUS STSe Key System Installation Manual

BKSU & Main Board Unit Assembly

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

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
(Upper Right section of BKSU)

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.
STARPLUS STSe - Installation Manual
"Digital Telephone Interface Board" on page
CN 19
CN 18
Figure 3-1: Built-In LCOB with CIDU
Chapter 3 - Installation
3-13.
3-13.
CN 3
CN 2
3-11
August 2005