20-151-0178 Rabbit Semiconductor, 20-151-0178 Datasheet - Page 36

• Manufacturer Part Number: 20-151-0178
• Description: CABLE CONVERTER RS-232 TO USB
• Manufacturer: Rabbit Semiconductor

Specifications of 20-151-0178

• Accessory Type: USB to RS232 Adapter
• Product: Microcontroller Accessories
• For Use With/related Products: Rabbit-based Boards
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 20-151-0178; 316-1181

4.3.3 RS-485
You can select an RS-485 communications channel with or without termination or jumpered termination
for the most flexibility. The header J8, between J6 and the RS-485/RabbitNet port, is the header for RS-
485 jumpered termination. J8 pin numbers are marked in
Figure
4-8.
Figure 4-8 Location of J8 for RS-485 Jumper Termination
See
Table 4-4
to determine jumper setting for enabling/disabling termination.
Table 4-4. Jumper Settings for RS-485 Termination
Termination Status
Jumpered Pins
Enabled
1 - 2 and 5 - 6
Disabled
No jumpers
For more information on termination see
Section
5.2.
The RS-485 lines come out on connector J6 (see
Figure
4-2). Signal A is pin 8 (485+) and signal B is pin 7
(485-). The RS-485 protocol is a packet driver implemented by the library packet.lib, which can be
found in the folder named “lib” where you installed Dynamic C.
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RabbitFLEX BL300F Options