List of Products of the Same Class as Physically Isolated Fast Ethernet Telephone Optical Multiplexers

No.

Model

Features

Figure

1

IDM NTD421

250M optical interface, providing 2 telephone channels + 2 groups of physically isolated Fast Ethernet ports, among which 1, 2, 3 ports and the fourth port are physically isolated, 220V power supply.

Dual physically isolated wire-speed 100M Ethernet channels; the shared 100M 3 Ethernet ports can also be divided into VLAN isolation,

Voice channel interfaces can be FXO central office automatic telephones, FXS remote automatic telephones, or MAG magneto telephones, and 2 RS485 interfaces are provided.

It supports point-to-point applications and dual optical port mutual backup. A standard SNMP network management interface is provided.

2

IDM NTD421c

250M optical interface, providing 2 telephone channels + 2 groups of physically isolated Fast Ethernet ports, of which 1, 2, 3 ports and the fourth port are physically isolated, 220V power supply.

Dual physically isolated wire-speed 100M Ethernet channels; the 3 Ethernet ports sharing 100M can also be divided into VLAN isolation,

Voice channel interfaces can be FXO central office automatic telephones, FXS remote automatic telephones, or MAG magneto telephones, and 2 RS485 interfaces are provided.

They can form chain network and ring network applications with dual optical port cascading. The 8-position DIP switch on the front panel is used to set the station address in the chain network. A standard SNMP network management interface is provided.

3

IDM OMP200-8E1-30

250M optical interface, 19-inch 1U standard chassis, 30 universal 64K service access device +8E1+2 physically isolated wire-speed Fast Ethernet ports, 220V/-48V optional dual power supply; provides a standard SNMP network management interface.

4

IDM 300MP

250M optical interface, 19-inch 6U standard chassis, providing 300 telephone channels + 8E1 + 2 physically isolated wire-speed 100M Ethernet channels, and a standard SNMP network management interface.