FOR SPECTRUM SERVICES Spectrum ET2251 DOCSIS 3.1 eMTA 2.5G Internet

Modem is in brand new condition. To the best of our knowledge, this should only be compatible with *Spectrum*'s internet services (not AT&T, Comcast, etc.) , and this is only a modem and does not have wireless (WiFi) capabilities. Spectrum ET2251 DOCSIS 3.1 eMTA 2.5G Internet Cable Modem ***FOR SPECTRUM SERVICES*** Description : Interfaces & Standards • Cable: F-Connector, female • Models: E31N2V1, E31T2V1, E31U2V1 • LAN: One 10/100/1000 Mbps RJ-45 port • Models: EN2251, ET2251, EU2251 • LAN: One 10/100/2.5 Gbps RJ-45 port • Telephony: 2 RJ-11 ports • PacketCable 1.5 (NCS) or 2.0 (IMS/SIP) compatible • DOCSIS 3.1 certified Downstream * • Frequency Range: 258MHz-1218MHz • Capture Bandwidth: 1.218GHz • Modulation: 64 or 256 QAM and OFDM: up to 4096 QAM • Maximum DOCSIS 3.1 Data Rate: 2 x 192MHz OFDM channels provide capacity up to 5Gbps • Maximum DOCSIS 3.0 Data Rate: 32 downstream channels provide speeds up to 1372Mbps • Symbol Rate: 5361 Ksps • RF (cable) Input Power: • -15 to +15dBmV (64/256 QAM) • -6 to +15dBmV (4096 QAM) • Input Impedance: 75 Ω Upstream * • Frequency Range: 5MHz ~ 42MHz/85MHz switchable • Modulation: QPSK or 8/16/32/64/128 QAM and OFDMA: up to 4096 QAM • Maximum DOCSIS 3.1 Data Rate: 2 x 96MHz OFDMA channels provide capacity up to 2Gbps • Maximum DOCSIS 3.0 Data Rate: 8 upstream channels provide speeds up to 246Mbps • Symbol Rate: 160, 320, 640, 1280, 2560, 5120 Ksps • RF (cable) Output Power: • A-TDMA/S-CDMA (one channel): +65dBmV • OFDMA: +65dBmV Security • DOS (denial of service) attack protection Regulatory • UL/FCC Class B, Energy Star Certified Voice • PacketCable 1.5 (NCS) or 2.0 (IMS/SIP) compatible • Line Voltage On-hook: -48 Volts, Loop Current: 20mA/41mA, Ring Capability: 2K ft., 5REN, Hook State: Signaling Loop Start • DTMF Tone Detection, T.38 Fax Relay (G.711), Echo Cancellation (G.168) / Silence Suppression, Voice Active Detection and Comfort Noise Generation • G.722 codec, WB SLIC Physical and Environmental • Dimensions: 70.8mm, 2.8 inches (W), 215mm, 8.46 inches (H), 170mm, 6.7 inches (D) • Weight: 632.6g (1.4 lbs), unit only • Power: 12V 1.5A (output), 100-240VAC, 50-60Hz, 1A Max (input), external PSU • Operating Temperature: 0°C ~ 40°C (32°F ~ 104°F) • Humidity: 5 ~ 95% (non-condensing) • Optional External Battery * Actual speeds may vary based on factors including network configuration, and connected devices.

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