• The RS 485-iS coupler is an open unit; assembly is only permissible in enclosures, cabinets or rooms for electrical equipment.
• The RS 485-iS coupler is approved for use in Zone 2 hazardous areas. For this purpose, it must be fitted in an enclosure complying at least with degree of protection IP54. A manufacturer's declaration for zone 2 (according to EN 50021) is required for the enclosure and the necessary cable glands.
• The RS 485-iS coupler can be used in a horizontal or vertical position.
• Installation is on a SIMATIC S7-300 rail.
• Diagnostics LEDs on the front panel signal the operating status.

Connection to PROFIBUS DP

• Connection to standard PROFIBUS DP via standard Sub?D socket (at the bottom on the RS 485?iS coupler, behind the right front door).

Integrated bus connection for PROFIBUS DP with RS 485-iS transmission technology

• Connection of PROFIBUS DP with RS 485-iS transmission technology via screw terminals (at the top of the RS 485-iS coupler, behind the right front door)
• The last bus node on the intrinsically safe PROFIBUS DP segment (not further RS 485?iS couplers) must be terminated by a selectable terminating resistor using the connector, article number 6ES7972-0DA60-0XA0.