Instruction Manual

DeviceMaster 500 User Guide: 2000501 Rev. A Connecting Serial Devices - 33
Connecting Serial Devices
This section discusses connecting your serial devices to the DeviceMaster 500. In
addition, it provides you with information to build serial cables and loopback
connectors to test the serial ports.
Connecting Devices
Use this procedure to connect asynchronous serial devices to the DeviceMaster
500 ports.
Make sure that you have configured the ports for the correct
communications mode before connecting any devices. The default
mode in the NS-Link drivers is RS-232. There is a remote possibility
that connecting a serial device for the wrong mode could damage the
serial device.
1. Connect your serial devices to the appropriate serial port on the DeviceMaster
500 using the appropriate cable. You can build your own DB9 cable using DB9
Serial Cables and Loopback Plugs on Page 35
Note: Refer to the hardware manufacturer’s installation documentation if you
need help with connector pinouts or cabling for the serial device.
2. Verify that the devices are communicating properly. Go to the appropriate
table for information about the LEDs, which may provide information about
the installation.
• 1-Port
(Standard) LEDs on Page 33
• 1-Port Embedded LEDs
on Page 34
• 4-Port LEDs
on Page 34
Caution
1-Port (Standard) LEDs
Status
The amber Status LED on the device is lit, indicating you have power
and it has completed the boot cycle.
Note: The Status LED flashes while booting and it takes
approximately 15 seconds for the Bootloader to complete the
cycle. When the Bootloader completes the cycle, the LED has a
solid, steady light that blinks approximately every 30 seconds.
Link Act
If the red Link Act LED is lit, it indicates a working Ethernet
connection.
Duplex If the red Duplex LED is lit, it indicates full-duplex activity.
100
If the red 100 LED is lit, it indicates a working 100 MB Ethernet
connection (100 MB network, only). If the LED is not lit, it indicates
a 10 MB Ethernet connection.