משחזר, בידוד פוטואלקטרי בכיתה תעשייתית, מפצל שיתוף רכזת 485 ערוצים, מתגי רשת מחשבים

תכונות מוצר

Item Type:

 Repeater  Compatibility

Working Voltage:

DC

Rated Power:

0.5-1.2W

Input Interface:

1 RS-232/1 RS-485

Output Interface:

4 RS-485

Load Capacity:

128 nodes per interface

Communication Distance:

2500 meters shielded wire or twisted pair wire per interface

Communication Rate:

300bps-115.2Kbps

Installation Method:

35mm rail installation, 4-hole installation on the back plate

Structure Size:

Approx. 115 x 90 x 40mm / 4.5 x 3.5 x 1.6in

Working Environment:

-30℃ to 70℃ relative humidity>95%RH

Wiring Notes:

1. 485 communication line must use shielded twisted pair, preferably multiple strands for spare, the longest is not more than 2500 meters.:

2. The wiring should be as far away as possible from high-voltage wires, not parallel to power lines, and not to be bundled together.:

Requirements For Wire Selection Using RS-485 Bus For Communication:

Use 2-core shielded twisted pair cable:

Copper, wire diameter 0.5～0.75 square millimeter,:

Impedance 38～88Ω/km,:

Capacitive resistance 30～50nF/km,:

2-core shielded twisted-pair cable with a twisting distance of 20 mm (if the line distance is not more than 500 meters, the line standard can be appropriately reduced, but it must be a twisted pair):

Package List:

1 x Repeater 

Note:

The device is suitable for long‑term stable operation under the recommended value; the device will not be damaged when working under the limit value, but may cause performance degradation; do not exceed the limit value range at any time, otherwise it may cause damage to the device!