474
External Controllers
© Tibbo Technology Inc.
8.3.1.1
Power Arrangement
The DS1202 is powered through its power jack. The power jack of the DS1202
accepts "small" power connectors with 3.5mm diameter. Use
, or
power adaptor supplied by Tibbo or similar adaptor with 12V
nominal output voltage. Adaptor current rating should be at least 500mA. On the
power jack, the ground is "on the outside", as shown on the figure below.
8.3.1.2
Ethernet Port
Ethernet port of the DS1202 is of 10/100BaseT type.
Connector is of RJ45 type, pin assignment is as follows:
#1
TX+
#2
TX-
#3
RX+
#4
<No connection>
#5
<No connection>
#6
RX-
#7
<No connection>
#8
<No connection>
The Ethernet port of the DS1202 incorporates
(two status LEDs and two
Ethernet status LEDs). The DS1202 has another pair of status LEDs located on top
of the board. Two status LED pairs work in parallel.
8.3.1.3
Multi-Channel RS232 Port
The DS1202 has four serial ports internally. The RS232 port of the DS1202
implements three outputs, four inputs, and one "spare" input (CD). Each of the three
outputs can be used as a TX line of a serial channel, or as a control output such as
RTS or DTR. Input lines can be used as an RX line of a serial channel, or as a control
input such as CTS or DSR. The spare input cannot work as an RX line. This input is
not used by the serial-over-IP application supplied by Tibbo and will be largely
omitted from further discussion. Your Tibbo BASIC/C application can always use this
extra input if you require it.