Difference between revisions of "DTE"
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* RS-232 to TTL converter | * RS-232 to TTL converter | ||
| − | * The DTE (PC) has the male connector | + | * The DTE (PC) has the male DB-9 connector |
[[File:DTE_DCE.png]] | [[File:DTE_DCE.png]] | ||
| − | * The [[DCE]] (peripheral) has the female. | + | * The [[DCE]] (peripheral) has the DB-9 female. |
== H1 Connector == | == H1 Connector == | ||
Revision as of 13:14, 18 July 2021
Contents
Features
- TTL to RS-232 converter
- 9 pin connector
- FTDI pinout (reversed directions to directly connect to FTDI Interface)
- 49x49mm card
- 4x 4-40 holes
DTE - RS-232 to TTL
- RS-232 to TTL converter
- The DTE (PC) has the male DB-9 connector
- The DCE (peripheral) has the DB-9 female.
H1 Connector
- Pins signal directions are reversed from an FTDI card
- Can be directly wired to FTDI connector
Pinout
- GND
- CTS (out)
- VCC (3.3V or 5V)
- TX (in)
- Rx (out)
- RTS (in)
- Pins 4 and 6 are backwards on Rev 1 card - corrected on Rev 2 card
Test Procedure
- FTDI-49MM
- DCE/DTE Cards
- 9 pin connectors plugged together
- FTDI loopback cable
- Run PuTTY
- 115,200 baud, RTS/CTS
- Type and it comes back
SP232A Application
- SP232ACN-L is 5V part
- ICL3232IBNZ is 3.3V or 5V part
DCE (reference)
- The DCE (Terminal) has the female connector
