Physically Isolated 100M Telephone Optical Terminal Product Comparison List
Physically Isolated 100M Telephone Optical Terminal Product Comparison List
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Physically Isolated 100M Telephone Optical Terminal Product Comparison List
No. | Model | Features | Image |
1 | IDM NTD421 | 250M optical interface, providing2 telephone channels+2 groups of physically isolated 100M Ethernet ports, where ports1,2,3 and the fourth port are physically isolated,220V power supply. Dual physically isolated wire-speed100M Ethernet channels; the shared100M of the3 Ethernet ports can also beVLAN isolated. The voice interface can be FXO (central office automatic telephone), FXS (remote automatic telephone), or MAG (magneto telephone), providing 2 RS485 interfaces. Supports point-to-point application with dual optical ports for mutual backup. Provides a standard SNMP network management interface. |
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2 | IDM NTD421c | 250M optical interface, providing2 telephone channels+2 groups of physically isolated 100M Ethernet ports, where ports1,2,3 and the fourth port are physically isolated,220V power supply. Dual physically isolated wire-speed100M Ethernet channels; the shared100M of the3 Ethernet ports can also beVLAN isolated. The voice interface can be FXO (central office automatic telephone), FXS (remote automatic telephone), or MAG (magneto telephone), providing 2 RS485 interfaces. Supports daisy-chain and ring network applications with dual optical ports for cascading. An 8-position DIP switch on the panel is used for setting the station address in the daisy-chain network. Provides a standard SNMP network management interface. |
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3 | IDM OMP200-8E1-30 |
