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RS232 TO RS485 CONVERTERS
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ACCESSORIES
- General Info
- Specifications
- Pinouts
- Images
- Troubleshooting
- Applications
DESCRIPTION
The SerialComm TTL-232-33P is a very high quality and reliable compact bi-directional port-powered RS232 to a low voltage 3.3V TTL converter which converts full-duplex RS232 to 3.3V TTL, This converter is ideal for any demanding application whether indoor in a lab, server room, office, at home or outdoors within the temperature range of -4ºF to 140ºF (-20ºC to 60ºC). The converter is port-powered and derives power by amplifying the RS232 data lines requiring no external power at all. This converter features auto sensing data turnaround eliminating the need for software drivers or handshake flow control. The TTL-232-33P has a DB9 female connector on the RS232 end, and DB9 male connector on the TTL end. A separate terminal block with no exposed jumpers is included with purchase. The terminal block plugs into the TTL end of the converter, providing screw-lug wire terminations for the port.
RS232 TO 3.3V TTL CONVERTER
90-day Money Back Guarantee / 5-year Replacement Warranty
SerialComm Model: TTL-232-33P
FEATURES
- Plug-and-Play (hot-pluggable)
- Includes terminal block with no exposed jumpers
- Flexible DB9 cable or screw down wire installation
- Operates from 300 to 115.2K baud
- Port powered - no external power needed
- Data direction auto-turnaround - no software is necessary
- Built-in 600W surge protection
- Built-in 15KV static protection
- MTBF(Mean Time Before Failure): 252,948 Hours
- 5-year manufacturer's warranty
- CE, FCC, RoHS 3, and REACH certified
- Manufactured to ISO-9001:2015 standards
| COMMUNICATION | |
| STANDARDS: | EIA/TIA RS232 Standard |
| BAUD RATES: | From 300 Baud To 115,200 Baud |
| CONNECTOR TYPES: | RS232 Side: DB9 Female and TTL Side: either DB9 Male or 5 Way Terminal Block |
| DISTANCE: | RS232 Side: 16 ft (5m) and TTL Side: up to 10 ft (3m) |
| ELECTRICAL | |
| POWER SOURCE: | Port Powered From RS232 Data Lines |
| CURRENT CONSUMPTION: | Less Than 10 mA |
| STATIC PROTECTION: | 15KV Electric Static Discharge (ESD) Protection |
| SURGE PROTECTION: | 600W Surge Protection |
| MECHANICAL | |
| HOUSING: | Rugged ABS |
| WEIGHT: |
With Terminal Block: 1.2oz (36 grams) Without Terminal Block: 0.8oz (24 grams) |
| DIMENSIONS: |
With Terminal Block: 3.16 X 1.32 X 0.73
in (80.3 X 33.4 X 18.6 mm) Without Terminal Block: 2.47 X 1.33 X 0.70 in (62.8 X 33.8 X 17.8 mm) |
| ENVIRONMENTAL | |
| OPERATING TEMP.: | -4ºF to 140ºF (-20ºC 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: | 252,948 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 | |||
DB9 FEMALE
3.3V 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 MALE OR TERMINAL BLOCK
Using one TTL-232-33P 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 RS232 port to the PC RS232 port. Running a hyper terminal program on the PC, send ASCII characters to the TTL-232-33P 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 TTL-232-33P unit is working properly.
Using one TTL-232-33P 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 RS232 port to the PC RS232 port. Running a hyper terminal program on the PC, send ASCII characters to the TTL-232-33P 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 TTL-232-33P unit is 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/WIN 7/8/10/11. DOWNLOAD SOFTWARE AND USER MANUAL
