Industrial RS485 Surge Suppressor
Model ISO-485-P
Category: Opto-Isolated Converters and Surge Suppressors
- General Info
- Specifications
- Pinouts
- Images
- Troubleshooting
- Applications
DESCRIPTION
The ISO-485-P is an industrial-grade (wide temperature range) bi-directional passive RS485 surge suppressor. It can protect any standard half duplex RS485 port from voltage peaks and spikes caused by lightning and other power surges. The ISO-485-P protects the 2 lines: 485+ and 485- The unit is passive, therefore, no external power or flow control is required. The ISO-485-P has a 3-wire terminal block on one RS485 side and a 2-wire terminal block on the other RS485 side.
The ISO-485-P provides three stages of protection for maximum safety. The first stage is a gas discharge tube. The second stage is a series of protection resistors. The third stage is 600W Transient Voltage Suppressor (TVS). All three stages of protection are provided for each of the RS485 lines. When the ISO-485-P is placed close to the RS485 device it is protecting, it will suppress any voltage levels above 6.8 volts without affecting the normal operation of the data transmission. When installing the ISO-485-P it is very important that the ground screw is connected to earth ground with a minimum of 12 AWG copper wire.
FEATURES
- Three Stage Protection of Both Lines of the RS-485 Port
- Passive: No Need for External Power
- Plug-and-Play (Hot-pluggable)
- Terminal Connections for Easy Installation
- Clamping Voltage at 6.8 Volts
- 600W of Surge Protection from Electrical Surges and Lightning Strikes
- MTBF(Mean Time Before Failure): 309,122 Hours
- 5 Year Manufacturer's Warranty
- RoHS 3, CE, FCC and REACH Certified
- Surface Mount RoHS Compliant Technology
PRODUCT COMPLIANCES
IN STOCK
30 Day Money Back Guarantee!
5 Year Replacement Warranty!
DATASHEETS
2D CAD DRAWINGS AND 3D MODELS
ISO 9001:2015 QUALITY MANAGEMENT
Our internationally recognized ISO 9001:2015 Quality Management System (Cert. No. 743003912) with a scope of “Design, Sales, Distribution of Data Communication and IT Support Services“ was recognized and certified by TÜV Rheinland of North America known for its very demanding and stringent requirements. For more details see our Quality Policy.
| COMMUNICATION | |
| STANDARDS: | 2-wire RS-485 Standard |
| BAUD RATES: | From 300 baud To 1 mbps |
| CONNECTOR TYPES: | RS-485 Side: 3-wire Terminal Block and Other RS-485 Side: 2-wire Terminal Block |
| DISTANCE: | RS-232 Side: 16 ft (5m) and RS-422 Side: up to 4000 ft (1.2km) |
| ELECTRICAL | |
| POWER SOURCE: | Passive Device: No Power Needed |
| WORKING VOLTAGE: | 0 Volts to 5 Volts |
| VOLTAGE CLAMP: | 6.8V |
| INSERT CONSUMPTION: | <0.5 db |
| Delay Time: | < 1ns |
| MECHANICAL | |
| HOUSING: | Heavy Duty Steel Casing |
| WEIGHT: | 0.35oz (10 grams) |
| DIMENSIONS: | 3.15 X 1.02 X 1.02 in (80.0 X 25.8 X 25.8 mm) |
| ENVIRONMENTAL | |
| OPERATING TEMP.: | -40ºF to 185ºF (-40ºC to 85ºC) |
| STORAGE TEMP.: | -40ºF to 185ºF (-40ºC to 85ºC) |
| OPERATING HUMIDITY: | 5% To 95% - No Condensation |
| QUALITY | |
| PRODUCT SAFETY: | CE, FCC and RoHS Conformance Certified |
| QUALITY MANAGEMENT: | Manufactured and Distributed to ISO 9001:2015 QMS |
| MEAN TIME BEFORE FAILURE: | 309,122 Hours |
| RELIABILITY: | Low Failure Rate - 99+% Reliability Since Inception |
| WARRANTY: | 5 Year Replacement Warranty |
RS485 Input Side 3-Pin Terminal Block
| Signal | A+ | B- | GND |
| Pin # | A | B | G |
| Function | A+ | B- | GND |
RS485 Output Side 2-Pin Terminal Block
| Signal | A+ | B- |
| Pin # | A | B |
| Function | A+ | B- |
RS485 SURGE ARRESTOR FUNCTIONAL DIAGRAM
FIGURE 1: 600W RS485 SURGE PROTECTOR FUNCTIONAL DIAGRAM
Connect ISO-48P-P to a working RS-485 connection. If there is continuity in the data stream then it is working.
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Below are some of the RS485 isolator applications.
