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RS232 TO RS485 CONVERTERS
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SERIAL TO TTL CONVERTERS
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- General Info
- Specifications
- Pinouts
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- Troubleshooting
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DESCRIPTION
The SerialComm USB-TTL-5 is a high quality, high performance bi-directional port powered USB to 5V TTL converter in a 9 pin format. It is a combination of two products: USB to RS232 Adapter (USB-232-2) utilizing the FTDI chipset and the RS232 to 5V TTL Converter (TTL-232-5P). It can convert any standard full duplex USB port to a 5V TTL signal in either direction. The unit is powered from the USB port and requires no external power. It also features data direction auto-turnaround eliminating the need for flow control.. The autosensing data turnaround automatically enables the TTL driver when data is present making the device plug-and-play. The USB-TTL-5 has a Type A female connector on the USB side and either a DB9 male connector or 5-way terminal block on the TTL side. Separate terminal block is included in package.
The USB-TTL-5 uses the latest FTDI chipset and is fully compatible with (32 /64 bits) versions of Windows 11, 10, 8.1, 8, 7, Vista, XP, and 98: Windows Server 2022, 2019, 2016, 2012 R2, 2012, 2008 R2, 2008, 2003 R2, 2003 Mac 10.3 – 10.15, and Linux.
USB TO 5V TTL CONVERTER
90-day Money Back Guarantee / 5-year Replacement Warranty
SerialComm Model: USB-TTL-5
FEATURES
- Plug-and-Play (hot-pluggable)
- USB 1.1 and 2.0 compatible
- Port powered - no external power needed
- Supports 300 baud to 115,200 baud rates
- 3 feet (1m) cable for convenience
- Transmit/Receive LED indicators
- Data direction auto-turnaround - no flow control necessary
- Internal 128/385 byte TX/RX buffers
- No IRQs, IO, DMA required. No IRQ conflicts
- Supports remote wakeup and power management
- Easy to install included drivers
- Built-in surge and static protection
- MTBF(Mean Time Before Failure): 427,056 Hours
- 5 year manufacturer's warranty
- CE, FCC, RoHS 3, and REACH certified
| COMMUNICATION | |
| STANDARDS: | USB 2.0 and 1.1 Standards - EIA/TIA RS232 Standard |
| BAUD RATES: | From 300 Baud To 115,200 Baud |
| CONNECTOR TYPES: | USB Side: Type A Female and TTL Side: DB9 Male or 5 Position Terminal Block |
| DISTANCE: | USB Side: 10 ft (3m) and TTL Side: 10 ft (3m) |
| LED INDICATIONS: | RS232: TX and RX |
| DRIVERS: | FTDI drivers are included in package |
| ELECTRICAL | |
| POWER SOURCE: | Port Powered From USB Port |
| CURRENT CONSUMPTION: | Less Than 100 mA |
| STATIC PROTECTION: | 15KV Electric Static Discharge (ESD) Protection |
| SURGE PROTECTION: | 600W Surge Protection |
| MECHANICAL | |
| WEIGHT: | 3.2oz (107.8 grams) |
| DIMENSIONS: |
RS232/TTL
Housing: 5.49 X 1.42 X 0.73
in (139.6 X 36.1 X 18.6 mm) Cable Length: 3 ft (1m) |
| ENVIRONMENTAL | |
| OPERATING TEMP.: | 14ºF to 140ºF (-10ºC to 60ºC) |
| STORAGE TEMP.: | -40ºF to 185ºF (-40ºC to 85ºC) |
| OPERATING HUMIDITY: | 5% To 95% - No Condensation |
| QUALITY | |
| PRODUCT SAFETY: | CE, FCC, RoHS 3, and REACH certified |
| QUALITY MANAGEMENT: | Manufactured and Distributed to ISO 9001:2015 QMS |
| MEAN TIME BEFORE FAILURE: | 427,056 Hours |
| RELIABILITY: | Low Failure Rate - 99+% Reliability Since Inception |
| WARRANTY: | 5-year Replacement Warranty |
TTL VOLTAGE LEVELS
|
TTL INPUT |
TTL OUTPUT |
|
HIGH ( > 2.0V ) |
HIGH (3.3V) |
|
LOW ( < 0.8V ) |
LOW (0.0V) |
RS232 SIDE
| SIGNAL | DCD | DTR | DSR | RTS | CTS | TX | RX | GND |
| PIN # | 1 | 4 | 6 | 7 | 8 | 2 | 3 | 5 |
| FUNCTION | TIED | TIED | TX | RX | GND | |||
5V TTL SIDE
| SIGNAL | >NC | >TTL IN |
>TTL OUT |
>NC | >GND |
| PIN # | >1 | >2 | >3 | >4 | >5 |
| FUNCTION | >NC | >TTL IN |
>TTL OUT |
>NC | >GND |
DB9 FEMALE
DB9 MALE OR TERMINAL BLOCK
Using one USB-TTL-5 unit:
Check that all connections comply with the connection diagrams. Perform a loop back test on one unit: Connect the IN to OUT on the TTL port. Connect the USB connector to the PC USB port. Running a hyper terminal program on the PC, send ASCII characters to the USB-TTL-5 converter from one PC port, and check that the characters are received at the same PC port. This tests that the transmit and receive functions of the USB-TTL-5 unit is working properly.
Using two USB-TTL-5 units:
Check that all connections comply with the connection diagrams. Perform a loop back test on two units: Connect the two TTL ports. Connect the two USB connectors to two PC USB ports. Running hyper terminal programs on both PCs, send ASCII characters to the USB-TTL-5 converter from one PC port, and check that the characters are received at the 2nd PC port. Repeat the test in the opposite direction. This tests that the transmit and receive functions of both USB-TTL-5 units are working properly.
Download FREE FULL VERSION AccessPort Advanced Serial Monitor, Simulation and Data Analysis Software Tool. This software tool is great for testing converters. Supports Windows 98/XP/VISTA/WIN7. DOWNLOAD SOFTWARE AND USER MANUAL
