Appendix C: Using Serial IQ Modules
Both DSRIQ-SRL and MPUIQ-SRLserial modules are supported and described in the following sections.
6.0.1 Using DSRIQ-SRL Modules
The DSRIQ-SRL module is a serial-to-VGA converter that allows VT100-capable devices to be viewed from
the switch local port, the OBWI, or by using the DSView software. The actual serial data is not accessed,
but is merely displayed. All serial data coming from the target device is displayed in a VT100 window,
placed into a video buffer and sent to the switch as though it came from a VGA target. Likewise,
keystrokes entered on a keyboard are sent to the attached device as though they were typed on a VT100
terminal.
6.0.2 DSRIQ-SRL module modes
The following modes can be accessed from the DSRIQ-SRL module:
• On-Line: This mode enables you to send and receive serial data.
• Configuration: This mode enables you to specify switch communication parameters, the
appearance of the Terminal Applications menu and key combinations for specific actions and
macros.
• History: This mode enables you to review serial data.
Configuring the DSRIQ-SRL module
NOTE: The DSRIQ-SRL module is a DCE device and only supports VT100 terminal emulation.
Pressing Ctrl-F8 will activate the Configuration screen of the DSRIQ-SRL module’s Terminal Applications
menu, which enables you to configure your DSRIQ-SRL module.
NOTE: When any Terminal Applications menu is active, pressing Enter saves changes and returns you
to the previous screen. Pressing Escape returns you to the previous screen without saving changes.
Within the Terminal Applications menu’s Configuration screen, you can modify the following options:
• Baud Rate: This option allows you to specify the serial port communications speed. Available
options are 300, 1200, 2400, 9600, 19,200, 34,800, 57,600 or 115,200 bps. The default value is
9600.
• Parity: This option allows you to specify the serial port’s communications parity. Available
options are EVEN, ODD or NONE. The default value is NONE.
• Flow Control: This option allows you to specify the type of serial flow control. Available options
are NONE, XOn/XOff (software) and RTS/CTS (hardware). The default value is NONE. If you
select a bps rate of 115,200, the only available flow control is RTS/CTS (hardware).
• DSR/CD Mode: This option allows you to control how the switch and CD lines operate. Available
options are Always on and Toggle. When in Toggle mode, DSR and CD lines are turned off for
Vertiv™ | Vertiv™ Avocent® MergePoint Unity™ Switch for Dell® Installer/User Guide | 57
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