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| Item number: CIEN9-31820657 Manufacturer no.: M500L-ESBC EAN/GTIN: n/a |
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 | More information: Protocols | Management protocols | Browser-based GUI, CLI, SNMP, INI Configuration file, REST API, EMS |  | Supported protocols | SIP | Technical details | Controller interface type | 4 FE configured in 1+1 redundancy or as individual ports | Features | Interface | 1-4 BRI ports, network S/T interfaces, NT or TE termination, Up to 4 FXS and 4 FXO ports | Operational conditions | Operating temperature (T-T) | 5 - 40 °C |  | Storage temperature (T-T) | -25 - 85 °C | Design | Product colour | Black | Network | Networking standards | IEEE 802.1Q, IEEE 802.1p |  | Differentiated services (DiffServ) supported | Yes | Weight & dimensions | Width | 296 mm |  | Depth | 160 mm |  | Height | 51 mm |  | Weight | 670 g | Power | Input voltage | 100 - 240 V |  | Input frequency | 50/60 Hz |  | Output voltage | 12 V | Security | SSID to VLAN mapping | Yes |  | Security algorithms | HTTPS, SRTP, SSH, TLS |  | DoS attack prevention | Yes |  | Network address translation (NAT) | Yes | Performance | Control display unit | Yes |
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