— 4 — — 5 — — 6 —
5. Connector Description
Power Connector
Connect the 12 to 48 VDC LPS or Class 2 power line to the UC-7101’s
terminal block. If the power is properly supplied, the Power LED will
light up. The OS is ready when the Ready LED glows a solid green.
The power for this product is intended to be supplied by a Listed Power
Unit, and rated to deliver 12 to 48 VDC at a minimum of 300 mA.
Grounding the UC-7101
Grounding and wire routing help limit the effects of noise due to
electromagnetic interference (EMI). Run the ground connection from the
ground screw to the grounding surface prior to connecting the power.
ATTENTION
This product is intended to be mounted to a well-grounded mounting
surface, such as a metal panel.
SG
SG: The Shielded Ground (sometimes called
Protected Ground) contact is the left most
contact of the 3-pin power terminal block
connector when viewed from the angle shown
here. Connect the SG wire to an appropriate
grounded metal surface.
Ethernet Port
The 10/100 Mbps Ethernet port requires using RJ45 connectors.
PIN Signal
1 ETx+
2 ETx-
3 ERx+
6 ERx-
18
Serial Port
The UC-7101’s serial port uses a DB9 connector. Each port can be
configured by software for RS-232, RS-422, or RS-485. The pin
assignments for the port are shown in the following table:
Male DB9 (UC-7101)
54
32
1
9876
Pin RS-232 RS-422 RS-485
(4-wire) RS-485
(2-wire)
1 DCD TxDA(-) TxDA(-) ---
2 RxD TxDB(+) TxDB(+) ---
3 TxD RxDB(+) RxDB(+) DataB(+)
4 DTR RxDA(-) RxDA(-) DataA(-)
5 GND GND GND GND
6 DSR --- --- ---
7 RTS --- --- ---
8 CTS --- --- ---
SD Slot
The UC-7101 has an internal SD slot for storage expansion. To install
an SD card, first use a screw driver to remove the SD slot cover to
access the slot. The slot is located on the right panel of the UC-7101.
Plug the SD card directly into the socket. When an SD card is inserted,
the system will mount the SD to /mnt/sd. To remove the SD card from
the slot, press the SD card in slightly with your finger, and then remove
your finger to cause the card to spring out partially. You may now
grasp the top of the card with two fingers and pull it out.
Console Port
The serial console port is a 4-pin pin-header RS-232 port. It is used for
the serial console terminal, which is useful for viewing boot-up
messages. Use the CBL-4PINDB9F-100 cable included with the
UC-7101 to connect a PC to the U-7101’s serial console port.
4
3
2
1
Pin Signal
4GND
3 NC*
2RxD
1TxD
*NC=Not Connected
Reset
Press the “Reset ” button and hold it in for at least 5 seconds to load the
factory default configuration. After the factory default configuration
has been loaded, the system will reboot automatically. The Ready LED
will blink on and off for the first 5 seconds, and then maintain a steady
glow once the system has rebooted.
6. Powering on the UC-7101
To power on the UC-7101, connect the “terminal block to power jack
converter” to the UC-7101’s DC terminal block (located on the left side
of the top panel), and then connect the power adaptor. Note that the
Shielded Ground wire should be connected to the right most pin of the
terminal block. Once the system is ready, the Ready LED will light up.
7. Connecting the UC-7101 to a PC
There are two ways to connect the UC-7101 to a PC: (1) through the
serial console port, or (2) by Telnet over the network. The COM settings
for the serial console port are: Baudrate=115200 bps, Parity=None,
Data bits=8, Stop bits =1, Flow Control=None.
ATTENTION
Use the CBL-4PINDB9F-100 cable included with the product to connect
a PC to the UC-7101’s serial console port. Remember to choose
“VT100” terminal type.
To connect by Telnet, you need to know the UC-7101’s IP address and
netmask. The default LAN settings are shown below. For first-time
configuration, you may find it convenient to use a cross-over Ethernet
cable to connect directly from the PC to the UC-7101.
Default IP Address Netmask
LAN 192.168.3.127 255.255.255.0
Once the UC-7101 is powered on, the Ready LED will light up. Use the
following default login name and password to proceed. The defaults are:
Login: root
Password: root
8. Configuring the Ethernet Interface
Please refer to the UC-7101 User’s Manual for information on how to
configure the Ethernet interface.
CAUTION
RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN
INCORRECT TYPE. DISPOSE OF USED BATTERIES ACCORDING
TO THE INSTRUCTION.
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