Front Panel Led Indicators - Delphi Display Systems IMS-9000 User Manual

IMS-9000 User's Manual

Front Panel LED Indicators

The front panel indicators are organized into five groups. The functions of each group
are described in the following sections.
Mode Indicator LEDs
The Mode Indicator LEDs are used to determine the various modes of operation.
LED Indicator
REQ
AUTO
RS485
OCS-PC
PC-MODEM
OCS-MODEM
POS-PC
OCS-POS
POS-MODEM
PC Status LED Indicators
These LED indicators provide information on the activity over the PC RS232
communications port.
LED Indicator
TXD
RXD
RTS
CTS
DTR
DSR
Modem Status LED Indicators
LED Indicator
TXD
RXD
DCD
DTR
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written permission from Delphi Display Systems, INC.
Copyright ©2000. [Unpublished Work]. All rights reserved.
Function
Flashes when a mode change request is made. A mode change request can
come from the MODEM (call answer or hang up), or from an external PC
connected to the PC port connection.
Flashes in a heart beat pattern during Automatic mode of operation. This is
the default mode of operation after power-up or reset.
When ON, indicates the OCS interface is in RS485 mode. When off, the
OCS interface is in RS232 mode. This mode is set via a jumper on the
IMS9000 circuit board.
Indicates the OCS is connected to the PC port.
Indicates the PC port is connected to the MODEM.
Indicates the OCS is connected to the MODEM.
Indicates the POS is connected to the PC port.
Indicates the OCS is connected to the POS port. This is the default mode of
operation after power-up or reset.
Indicates the POS port is connected to the MODEM.
Table 1 – Mode Indicator LEDs
Function
Transmit Data.
Receive Data.
Request to Send.
Clear to Send.
Data Terminal Ready.
Data Set Ready.
Table 2 - PC Status LEDs
Function
Transmit Data.
Receive Data.
Data Carrier Detect. This LED is illuminated when a telephone connection is
established and remains illuminated until the connection is dropped.
Data Terminal Ready.
Table 3 - MODEM Status LEDs
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