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Template:Networking rutos manual rs485 (view source)
Revision as of 09:23, 3 July 2020
, 09:23, 3 July 2020no edit summary
==General information==
==General information==
{{#ifeq:{{{series}}}|TRB14X|
==RS485 connector pinout==
Below is a depiction of the RS485 connector pins:
{| class="wikitable" style="border: 1px solid black; background: white"
|+
| style="border: 1px solid black; width: 250px" colspan="3" | <span style=color:#104996>'''RS485 connector pinout'''</span>
| style="border: 1px solid white; border-left: 1px solid black; " rowspan="7" | [[File:{{{file_rs485_pinout}}}|130px|right|bottom]]
|-
| style="border: 1px solid black;" | Pin
| style="border: 1px solid black;" | Name
| style="border: 1px solid black;" | Description
|-
| style="border: 1px solid black;" | 1
| style="border: 1px solid black;" | D_N
| style="border: 1px solid black;" | Driver negative signal
|-
| style="border: 1px solid black;" | 2
| style="border: 1px solid black;" | R_N
| style="border: 1px solid black;" | Receiver negative signal
|-
| style="border: 1px solid black;" | 3
| style="border: 1px solid black;" | GND
| style="border: 1px solid black;" | Device ground
|-
| style="border: 1px solid black;" | 4
| style="border: 1px solid black;" | D_P
| style="border: 1px solid black;" | Driver positive signal
|-
| style="border: 1px solid black;" | 5
| style="border: 1px solid black;" | R_P
| style="border: 1px solid black;" | Receiver positive signal
|-
| style="border: 1px solid black;" | 6
| style="border: 1px solid black;" | Vin
| style="border: 1px solid black;" | Power input 9-30 VDC
| style="border: 1px solid white; border-left: 1px solid black; width: 250px" colspan="1" | <span style=color:white>filler text</span>
|-
|}
==Cable Type==
Recommended cable parameters:
<table class="nd-othertables">
<tr>
<th style="width: 300px">PARAMETER</th>
<th style="width: 850px">VALUE</th>
</tr>
<tr>
<td>Cable Type</td>
<td>22-24 AWG, 2 – pair (used for full-duplex networks ) or 1-pair (used for half duplex networks). One addtitional wire for ground connection is needed</td>
</tr>
<tr>
<td>Characteristic cable Impedance</td>
<td>120 Ω @ 1MHz</td>
</tr>
<tr>
<td>Capacitance (conductor to conductor)</td>
<td>36 pF/m</td>
</tr>
<tr>
<td>Propagation Velocity</td>
<td>78% (1.3 ns/ft)</td>
</tr>
</table>|}}
===Maximum data rate vs. transmission line length===
===Maximum data rate vs. transmission line length===
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