Comtrol DeviceMaster Up, Руководство по установке оборудования

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26 - DeviceMaster UP User Guide : 2000451 Rev. C Connecting Serial Devices
Connecting Devices
The DeviceMaster UP 4-port model has Rx and Tx LEDs next to each port that
provide information about the network connection of the serial port.
• The amber Rx LEDs shows that the port is
connected to another RS-232 device or
receiving data in RS-422/485 mode.
• The green Tx LED shows that the data is
transmitting.
LED Description
PWR
LED on the front panel of the DeviceMaster UP is lit, indicating you
have power and it has completed the boot cycle.
Note: The PWR LED flashes while booting and it takes approximately
15 seconds for the bootloader to complete the cycle.
LNK
ACT
The red LNK ACT LED is lit, indicating
that you have a working Ethernet
connection.
COL
If the red COL LED is lit, there is a
network collision.
100
If the red 100 LED is lit, it indicates a
working 100 MB Ethernet connection (100
MB network, only).
LNK
ACT
COL
100
10/100 NETWORK
UP DOWN
TX1
*
RX1* DB9 LEDs
* Represents port number.