User`s manual
MediaPack
SIP User's Manual 34 Document #: LTRT-65408
3.1.5.1 Connecting the MP-11x RS-232 Port to Your PC
Using a standard RS-232 straight cable (not a cross-over cable) with DB-9 connectors,
connect the MP-11x RS-232 port (using a DB-9 to PS/2 adaptor) to either COM1 or COM2
RS-232 communication port on your PC. The pinouts of the PS/2 connector is shown
below in Figure 3-6.
A PS/2 to DB-9 adaptor is not included with the MP-11x package. For the PS/2 to DB-9
pinouts, refer to Figure 3-7 below.
For information on establishing a serial communications link with the MP-11x, refer to
Section 10.2 on page 262.
Figure 3-6: PS/2 Connector Pinouts
2
3
6
PS/2 Female Connector and Pinout
(TD) - Transmit Data
(RD) - Receive Data
(GND) - Ground for Voltage
Figure 3-7: PS/2 to DB-9 Adaptor Pinouts
3.1.5.2 Cabling the MP-11x/FXS Lifeline
The Lifeline provides a wired analog POTS phone connection to any PSTN or PBX FXS
port when there is no power, or when the network connection fails. Users can therefore use
the Lifeline phone even when the MP-11x is not powered on or not connected to the
network.
On FXS gateways, a single Lifeline, connected to port #1 via a splitter (not supplied), is
available. On combined FXS/FXO gateways a splitter isn’t required; all FXS ports are
automatically connected to FXO ports (FXS port 0 to FXO port 4 and so forth). On FXO
gateways a Lifeline isn’t available.
The Lifeline’s splitter connects pins #1 and #4 to another source of an FXS port, and pins
#2 and #3 to the POTS phone. Refer to the Lifeline splitter pinouts in Figure 3-8.
Figure 3-8: Lifeline Splitter Pinouts and RJ-11 Connector
1 2 3 4
1 -
2 -
3 -
4 -
Lifeline Tip
Lifeline Ring
Tip
Ring
¾
To cable the MP-11x/FXS Lifeline, take these 3 steps:
1. Connect the Lifeline splitter to port #1 on the MP-11x (the Lifeline splitter is a special
order option).
2. Connect the Lifeline phone to Port A on the Lifeline splitter.
3. Connect an analog PSTN line to Port B on the Lifeline splitter.