Fujitsu SRS-1050, User Manual

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SRS -1050 Overview ( Chapter 1
Page 1-4
LED Indicators
Data Communications
DTR Data Terminal Ready
TXD Transmit Data
RXD Receive Data
Message Waiting
An LED labeled MSG, located
on the front panel in the upper-
left corner next to the softkeys
Features
An LED next to each function
key or feature button that lights
when the feature is activated.
For Calls
An LED next to each button that
flashes green for incoming calls,
flashes red if a call is on hold,
and remains steady red when a
call is active.
The LEDs next to each button and
function key have three possible
states: red, green, or off. When
lit red or green, these LEDs can be
on steadily or can flash at varying
speeds to signal certain
conditions, such as call on hold
or feature in use.
Controls and Connectors
The SRS-1050 has the following
controls, connectors, switches,
and indicators:
Terminating resistor . This built-
in resistor, labeled "TR", provides
a standard termination to the
ISDN line.
DC power connector . This
connector, labeled "40 V DC",
provides an alternative to AC
power delivered through the
ISDN line.
Power source selection . This is a
locking switch, labeled "PS".
ISDN line connector . Use this
RJ-45 connector to plug in the
telephone line. Normally, the line
also provides AC power for the
set.
Handset/Headset connector .
This jack, located on the set's left
side, allows you to connect either
a handset or a headset.
Loopback test switch . This
locking switch, labeled "LOOP",
places the set in loopback mode.
Loopback is a test for data
transmission, so this switch is
active only if the optional data
terminal adapter is installed.
Program switch for data setup.
This switch, labeled "PRG",
places the set in programming
mode when you are setting up
parameters for the data terminal
adapter.