MLis MLB-S4101, User Manual

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MLiS-S4101 Manual
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3 Making the Hardware Connections
The following information is provided to give the user an understanding of how to connect the MLB-S4101 to the LAN and
serial device. A review of the switch settings and the functionality of th
e LED’s are also provided.
3.1 Serial Connection
The MLB-S4101 has one, two or four DB-9 male connectors. The serial port is configured as a DTE (data terminal
equipment) device. All PC COM ports are DTE ports. A null modem cable is required to make a connection between the
COM port on a PC and the MLB-S4101 serial port. A straight through cable is required to connect the MLB-S4101 serial
port to a DCE device.
3.2 Power Connection
The MLB-S4101 has a two pins terminal block and power jack. Power can apply on either terminal block or the power jack.
It accepts 9VDC-15VDC 500mA power supply. When power is apply a green light label as run will flash every one second
to indicate the system is up and running.
3.3 Ethernet Connection
A straight-through Ethernet cable can be used to connect the serial server to an Ethernet hub, switch, or wall plate. A
crossover Ethernet cable can be used to make a connection directly to the NIC (Network Interface Card) on a PC or
laptop.
3.4 Reset Button
The reset button can be found between the switch and terminal block. To reset the unit manually apply power, insert a
small plastic tool, and press lightly depressing switch. Hold for 3 seconds and release. The Link and Run light will go out
and turn back on.
3.5 LED Definition
Led Name Led Function
Link Green
– 100 BaseTX Ethernet connection established
Yellow
– 10 BaseT Ethernet connection established
Run Flashing Green
– system is ready
Serial 1/2/3/4 Green
– connection established
Flashing Green
– data is transmitting