The RS232 connector type on this device is a '''DCE female'''. DCE stands for Data Communication Equipment.
The RS232 connector type on this device is a '''DCE female'''. DCE stands for Data Communication Equipment.
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{{Template:trb142_rs232_connector_pinout}}
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{{Template: trb142_rs232_connector_pinout}}
==Cables==
==Cables==
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There are two types of RS232 serial devices: '''DTE''' and '''DCE'''. DTE typically refers to the serial port on a PC or terminal, while DCE refers to communication devices. Connectors mounted on DTE are likely to be male, and those mounted on DCE are likely to be female.
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{{Template: webui_services_rs232_cables}}
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This device is DCE and has a female connector.
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To connect a standard DTE device, use a straight-through Female/Male RS232 cable:
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[[File:Services rs232 connector female male.PNG]]
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See straight cable pinout below:
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[[File:Straight cable pinout v2.png|400px]]
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To connect another DCE device to RUT955, a Null-modem (crossed) Male/Male cable should be used:
Maximum cable length is 15 meters or the cable length equal to a capacitance of 2500 pF (for a 19200 baud rate). Using lower capacitance cables can increase the distance. Reducing communication speed can also increase maximum cable length.