TA2020B & IR2110B Installation Guide
4
1 Introduction
The TA2020B and IR2110B facilitate the transmission of data over ISDN networks.
The units can be configured either by using commands entered at the serial port (much
like a modem), or via the built-in Web interface. We recommend that you use the Web
interface whenever possible.
1.1 Front Panel Features
The front panel of the unit incorporates number of LED indicators depending on the model
as shown in the following illustration (IR2110B):
Status Indicators
The status indicators operate as follows:
ON
Illuminates steady red when power is applied.
LAN
On the IR2110B illuminates steady when there is a network
connection to the LAN port and flashes when data is transmitted
or received.
ISDN:
D, B1, B2
Flash when data is transmitted/received over the ISDN D, B1 or
B2 channels.
DTE 0, 1
Illuminate steady if a terminal is connected to the respective
serial port and the DTR signal is on. Flashes when data is
transmitted or received. DTE 1 is only present on the TA2020B.
TA2020B & IR2110B Installation Guide
5
Rear Panel Features
The functions of these connectors are described in the following table:
12V DC
This jack socket is used to connect the unit to the power supply
using 12V DC mains adapter.
SERIAL 0
This 25-way D socket provides a synchronous/asynchronous
RS2322 serial port which may be used to connect the unit to a
compatible serial device. The unit is supplied with a suitable 2
metre serial cable. To comply with EMC requirements it should
not be used with a longer cable.
SERIAL 1
On the TA2020B this 9-way D socket provides an asynchronous
RS2322 serial port which may be used to connect the unit to a
compatible serial device. The unit is supplied with a suitable 2
metre serial cable. To comply with EMC requirements it should
not be used with a longer cable.
On the IR2110B, this port is disabled.
LAN
On the IR2110B this socket is used to connect the unit to a
10/100-BaseT LAN using the 2-metre STP (Shielded Twisted
Pair) cable supplied or a suitable alternative. This port is auto-
sensing for speed and wiring (straight-through or cross-over). To
comply with EMC requirements it should not be used with non-
STP cable.
ISDN
This socket is used to connect the unit to an ISDN line.
Reset switch
This is located on the underside of the unit near the front. Pressing the switch gently with
the tip of a pen or other suitable implement will generate a hardware reset.
