| INTRODUCTION: |
The TTL-485-2 is an industrial grade (wide temperature range with surge & static protection)
port-powered bi-directional RS-485 to 5VDC TTL/COMS converter, which can be used to convert
RS-485 to 5VDC TTL/COMS compatible levels and vice versa. The unit is powered from an external
5VDC power supply. It supports data direction auto-turnaround, and therefore, no flow control is
required. |
| FEATURES: |
- Industrial grade with wide temperature range, surge and static protection.
- Plug and play (hot-pluggable, data format auto-sensing and self-adjusting).
- Data direction auto-turnaround, no flow control is required.
- Built-in surge protection, static protection and circuit protection.
- Built-in 1203 end-of-line terminator for reliability and easy installation.
- Surface Mount Technology manufactured to ISO-9001 standards.
- CE certified.
- 5-year manufacturer's warranty.
|
| SPECIFICATIONS: |
|
| Compatibility: |
EIA/TIA RS-485 standard and TTL/COMS 5VDC level |
| Power Source: |
+5VDC (±5%) Regulated Power Supply (not included) |
| Current Consumption: |
Less than 30mA |
| Baud Rates: |
300 to 115,200bps (auto-sensing and self-adjusting) |
| Distance: |
TTL side: 10ft (3m)
RS-485 side: Up to 4000ft (1.2km) at 19,200bps; |
| Connector: |
TTL side: DB-9 Male; RS-485 side: DB-9 Male; Termination Board
(TTL): DB-9 Female and a 3-way Terminal Block; Termination
Board (RS-485): DB-9 Female and a 4-Way Terminal Block |
| Maximum number of drops: |
128 |
| End-of-Line Terminator: |
120Ohm (Built-in) |
| Surge Protection: |
600W |
| Static Protection (ESD): |
600W |
| Dimensions (H x W x D): |
0.63 x 1.3 x 4.5 in (16 x 32 x 115 mm) (with termination boards) |
| Weight: |
1.66 oz (47 g) (with termination boards) |
| Operating Temperature: |
-40F to 185F (-40C to 85C) |
| Operating Humidity: |
Up to 90% RH (no condensation) |
