Hardware description – Impulse 2123 User Manual
Page 12
Hardware Description
SeaLATCH™ USB Port
The 2123 integrates a patent-pending SeaLATCH USB port, which is fully
compatible with standard USB cables. When used with the included USB cable with
a SeaLATCH type B USB connector, the metal thumbscrew provides a secure
metal-to-metal connection to the device and prevents accidental cable disconnection.
Status LEDs
Status LEDs on the front of the 2123 indicate the following information:
MODE (Red or Green) – Indicates the electrical interface selected
o
Green indicates RS-232 mode
o
Red indicates RS-422 or RS-485 mode
DATA (Green) – Blinks to indicate data is being transmitted or received
EN[able] (Green) – Lights when the hub is properly powered through the
USB port and communication between the device and host has been enabled
DB9M Serial Connectors
The 2123 includes a single DB9M serial connector with full modem control signals
implemented in RS-232 mode. Pin outs for the connector are included in the
following Electrical Specifications section.
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