2-Port Analog Adapter - STARPLUS DHS-L Technical Manual

2-18
Chapter 2 - Description and Installation

2-Port Analog Adapter

A 2-Port Analog Adapter is optionally available which will support most auxiliary
equipment within a business environment such as fax machines, answering devices and
Single Line Telephones (SLT). Each adapter requires an unused digital station port and
will yield two analog device interfaces.
The 2-Port Analog Adapter is a wall mount apparatus that is powered from the KSU. The
adapter receives both voice channels and data control from the KSU, over one pair of
wires. The 2-Port Analog Adapter generates +30V DC and 20-25Hz, 50V square wave
ringing for operation of SLTs, fax machines, answering devices, and most modems. All
terminations are by RJ-11 connection.
When used with the DTIB-8 (only), the analog Adapter utilizes the B1 channel for voice
tip/ring connection to one analog station, and the B2 channel for the other. D channel
provides port control to and from the KSU. The adapter provides two DTMF receivers
(one for each analog port).
Third party analog devices connected to the 2-Port Analog Adapter must generate DTMF
signaling (Pulse/rotary dial telephones/equipment are not supported). The 2-Port Analog
Adapter provides adequate housing space for one 2-Port Analog Expansion.
Loop disconnect and message waiting lamps are not supported by the analog adapter.
DTIB-8 (2-1)
The Port Analog Adapter only is supported on the 8-port DTIB-8.
Figure 2-15: 2-Port Analog Adapter
DHS- L Gener al Descr iption