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Getting Started Teledyne API – Model T300/T300M CO Analyzer
56
RS-232 COM PORT CONNECTOR PIN-OUTS
Electronically, the difference between the DCE and DTE is the pin assignment of the
Data Receive and Data Transmit functions.
DTE devices receive data on pin 2 and transmit data on pin 3.
DCE devices receive data on pin 3 and transmit data on pin 2.
Figure 3-14: Rear Panel Connector Pin-Outs for RS-232 Mode
The signals from these two connectors are routed from the motherboard via a wiring
harness to two 10-pin connectors on the CPU card, J11 (COM1) and J12 (COM2)
(Figure 3-15).
06864B DCN6314