IDM NTD421 Dual telephone transmitter

IDM NTD421 Dual telephone transmitter

一       Product Overview

IDM NTD421 is a fiber access device with a variety of configurations, it can provide Ethernet, telephone, serial port optical multiplexing, and IDM MP200 series optical interface device interoperability. IDM NTD421 optical fiber interface rate is 150M, can provide 1 wire speed 100M Ethernet. The transmission interface of IDM NTD421 provides up to two groups of optical fiber interface, constitute a backup, or light chain network, ring network etc..

In the user interface, it can support 4 groups Ethernet ports, 2 channels phone, 2 channels RS485 or one channel RS422. The Ethernet interface can be configured as physical isolation or VLAN isolation mode.

Can be widely used in public security, electricity, railways, mines and other network and mobile, Unicom, telecom and other public areas.

二       Equipment working principle

Working principle of single optical device

The work principle of double port equipment

三       Product characteristics

1. Dual physical isolation line speed 100M Ethernet channel.

2.3* shared 100M Ethernet can also be divided into VLAN isolation

3.Phone interface can be FXO terminal automatic telephone and FXS telephone, MAG telephone remote automatic magnet.

4.One channel optional RS485 data channel

5.The optical interface is SFP, can be configured as the optical module according to the needs.

6.Can be customizes the double optical interface, make up the chain network.

四       Product Features

1 Function and application of single fiber port device.

Function:

The point to point general use telephone transmitter map.

The point to point magnet telephone transmitter.

Including point to multipoint center terminal equipment.

Application:

Fiber to the office, the inner and outer internet is physical isolation.

The construction of public security bayonet point information.

Shielding room communication.

Armed police, public security guard booth.

Community, factory information point construction.

2. Function and application of dual fiber port device

Function:

Double light chain network telephone terminal interface picture.

Network graph of chain network with IDM MP200-30E.

Application:

Tunnel construction application.

River monitoring and control.

五       Specifications

1. Optical interface

2. Ethernet interface

3. FXO/FXS interface

4. Power and consumption

5. Environment and Condition

六       Application example

Chain network application

Star network application

Ring network application

Point to point