themask
11-08-2003, 05:58 PM
DTE or DCE?
Devices that communicate over a serial interface are divided into two classes: DTE and DCE. The most important difference between these types of devices is that the DCE device supplies the clock signal that paces the communications on the bus. The documentation provided with the device should indicate whether it is DTE or DCE (some devices have a jumper to select either mode). If you cannot find the information in the documentation, use the following general guidelines to help you select the proper class:
DTE
Terminals, Data Service
Unit/Channel Service Unit (DSU/CSU), Multiplexors
Hubs, Routers
Male
DCE
Modems
Female
* Selectable devices usually have a jumper, switch, or software command used to select DTE or DCE.
Male or Female
The gender of the connector is determined by examining the connector. If pins protrude from the base of the connector, the connector is male. If the connector has holes to accept the pins, the connector is female. Refer to the drawings to identify the connector that you need.
Devices that communicate over a serial interface are divided into two classes: DTE and DCE. The most important difference between these types of devices is that the DCE device supplies the clock signal that paces the communications on the bus. The documentation provided with the device should indicate whether it is DTE or DCE (some devices have a jumper to select either mode). If you cannot find the information in the documentation, use the following general guidelines to help you select the proper class:
DTE
Terminals, Data Service
Unit/Channel Service Unit (DSU/CSU), Multiplexors
Hubs, Routers
Male
DCE
Modems
Female
* Selectable devices usually have a jumper, switch, or software command used to select DTE or DCE.
Male or Female
The gender of the connector is determined by examining the connector. If pins protrude from the base of the connector, the connector is male. If the connector has holes to accept the pins, the connector is female. Refer to the drawings to identify the connector that you need.