|
|
|
INTRODUCTION |
|
|
 |
|
The TTL33-232-1 is a port-powered
RS-232 to 3.3VDC TTL/CMOS converter, which can be used to
convert RS-232 to 3.3V TTL/CMOS compatible levels and vice
versa. The unit is powered from the RS-232 data line, and
therefore, no external power or RTS, DTR is required. 
spec sheet |
FAQs
|
|
$44.95 |
|
|
|
|
|
|
|
FEATURES |
|
|
- Plug and play (hot-pluggable, data format auto-sensing and self-adjusting).
- Port-powered, no external power or RTS, DTR required.
- SMT circuit.
- Built-in static protection circuit (ESD).
- Built-in short circuit protection (TTL data line). |
| |
|
|
SPECIFICATIONS |
|
|
|
Compatibility: |
EIA/TIA
RS-232C standard and TTL/CMOS 3.3V level |
|
Power Source: |
Port power from RS232 data line |
|
Current
Consumption: |
Under 10mA |
|
Baud Rates: |
300 to 115,200bps (Auto-sensing & Self-adjusting) |
|
Distance: |
RS232
side: 16ft (5m); TTL side: 10ft (3m) |
|
Connector: |
RS232 Side:
DB-9 Female; TTL Side: DB-9 Male;
Termination
Board: DB-9 Female and a 3-Way Terminal Block |
|
Static protection
(ESD): |
Up to 15KV |
|
Dimensions (H x W x D): |
0.63 x 1.3
x 3.5 in (16 x 32 x
88 mm) (with Termination Board) |
|
Weight: |
1.27 oz (36 g)
(with Termination Board) |
|
Operating Temperature: |
14ºF to
122ºF (-10ºC to
50ºC) |
|
Operating Humidity: |
Up to 90% RH (no condensation) |
|
| |
|
|
TTL SIGNAL LEVELS |
|
|
|
|
TTL Input |
TTL Output |
|
High
(>2.0V) |
High
(>2.4V) |
|
Low (<0.8V) |
Low (<0.6V) |
|
|
|
|
CONNECTIONS |
|
|
 |
|
Figure 1:
TTL33-232-1 Connection Diagram |
| |
|
