Telenetics MIU Dial or Leased Line modem with RS-485 manual Product Overview, Product Description

1. PRODUCT OVERVIEW

The CIU (MIU\XXX485) is an industrial modem with an RS-232 to RS485 converter module for direct connection to industrial RS485 Interface units. Though similar to commercial modems, the MIUXXX\485 contains special features that make it particularly well suited for industrial applications. (MIUXXX is for any dial or lease line modems such as MIU14.4L)

These capabilities include:

Environment

Industrial

The CIU has been designed explicitly for use in industrial environments. In addition to an extended temperature range (-40 to +85o C), the MIUXXX\485 includes surge, shock, vibration, and safety parameters superior to those of conventional commercial modems.

The CIU uses standard industrial connectors for RS485 data and RS232 interfaces. These connectors allow reliable interconnect to other industrial components. Furthermore, the CIU data lines are provided at RS-232 and RS485 signal levels for both stand-alone and embedded applications.

2. PRODUCT DESCRIPTION

The CIU provides Dial telephone communication capabilities for the industrial environment. It can be operated stand-alone or as a component of a larger industrial system.

2.1 Telephone Interface

The CIU telephone interface operates over two wire lines available in North America. The telephone line interface is environmentally benign, allowing use in Class I, Division 2 applications.

2.2 Data Interface

The CIU data interface provides RS-232 compatible serial signaling. The data interface interconnects to industrial controllers at RS-232E, RS422 or RS485 data interface are available as options.

2.3 Power

The MIU accepts either regulated 48.0 to 220 volts DC, or regulated 48.0 to 220 volt AC power inputs. Unregulated 12.0 to 24.0 volt DC power input is available as an option.

2.4 Mechanical

The CIU consists of two printed circuit boards: A single two sided baseboard and a RS485 module is a single two sided package 5-3/8 x 4 x 1-3/8 suitable for desktop or wall mounting.

2.5 Surge

The MIUXXX\485 has double the surge protection of IEC801-4 voltage

requirements. (5KVac)

Install Op and Diags for MIU Modems and RS485 (0049-0002-010A) Page 1 of 16