Changes
[[File:TEL-SER4 6.png|200px]]
TEL-SERX4 Provides USB to Multiprotocol(RS-232, RS-485-Half Duplex, RS485-Full Duplex) serial connection (up to 4 Ports per TEL).
* Simple USB Connection protocol
* Supports Multiprotocol implementation on one DB9 Connector.
* Individually enabled between RS-232 or RS485 ports.
* Build-in Termination resistor.
* Protocol switching using Onboard switches or using I2C expander
USB <--> USB HUB <---> RS-232 / RS-485 (Port A) - Native DB-9 Port
RS-232 / RS-485 (Port B)
RS-232 / RS-485 (Port C)
RS-232 / RS-485 (Port D)
RS-485 - Globally enable Termination resistor. - User Switchable
- Globally Switched Between Half Duplex and Full-Duplex mode. - User Switchable
TEL-SERX4 is utilizing a USB2 interface
Multiple TEL-SERX4 cards can be installed in a system
===Specifications===
* Using DB9 connector.
* Implemented using [https://ftdichip.com/wp-content/uploads/2020/08/DS_FT4232H.pdf FTDI FT4232H]
* Each port supports RS232, RS485 half/full duplex and can be configured independently.
* Over 20 ports can be installed.
* Driverless operation in Windows & Linux
* USB native device in Linux
* Ambient Operation from –40°C to 85°C.
=== Configuration ===
==== Two Configuration method of the device====
* Onboard switches
SW1 - PORTA: ON->RS-232 OFF->RS-485 - Native on board Port
SW2 - PORTB: ON->RS-232 OFF->RS-485
SW3 - PORTC: ON->RS-232 OFF->RS-485
SW4 - PORTD: ON->RS-232 OFF->RS-485
SW7 - ON->RS-485 Half Duplex OFF->RS-485 Full-Duplex - Port A-D
SW5 - ON->Enables Termination resistor RS-485-Half Duplex - Port A-D
SW6 - ON->Enables Termination Resistor RS-485-Full Duplex - Port A-D
* I2C GPIO expander(PCA9555) that is located on I2C address 0X27.
I/O,0.0 -- Port A: High: RS-232, Low: RS-485
I/O,0.1 -- Port B: High: RS-232, Low: RS-485
I/O,0.2 -- Port C: High: RS-232, Low: RS-485
I/O,0.3 -- Port D: High: RS-232, Low: RS-485
I/O,0.4 -- NC
I/O,0.5 -- NC
I/O,0.6 -- NC
I/O,0.7 -- Global: High RS-485 Half Duplex, Low: RS-485 Full Duplex
I/O,1.0 -- Port A: High RS-485 Termination enabled on Half Duplex Lines
I/O,1.1 -- Port B: High RS-485 Termination enabled on Half Duplex Lines
I/O,1.2 -- Port C: High RS-485 Termination enabled on Half Duplex Lines
I/O,1.3 -- Port D: High RS-485 Termination enabled on Half Duplex Lines
I/O,1.4 -- Port A: High RS-485 Termination enabled on Full-Duplex Lines
I/O,1.5 -- Port B: High RS-485 Termination enabled on Full-Duplex Lines
I/O,1.6 -- Port C: High RS-485 Termination enabled on Full-Duplex Lines
I/O,1.7 -- Port D: High RS-485 Termination enabled on Full-Duplex Lines
=== Open source hardware and software ===
* Complete hardware design files are available
* Complete firmware is available
== Connection requirements ==
=== Pinout ===
{|
|-
| [[File:TEL-SERDB9_DB9_pinout_diagram.png|thumb|none|600px | DB-9 Pinout]]
| [[File:TEL-SERDB9_DB9_Switch_board location.png|thumb|none|273px | Switch Location Diagram]]
|}
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===Instructions===
<b><u>Mechanical</u></b>
*[https://fit-iot.com/files/tensor-pc/TELs/FT.H-SER4/FT.H-SER4_V1_1_1_Mechanical_8010117002.zip TEL-SERX4 Mechanical - DXF]<br>
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