Spectrum D3.1 eMTA Docsis 3.1 Advanced Voice Modem User Manual
Understanding Device Connections
Rear Panel:
- Voice 1-2: Use to connect analog telephones to the device. Telephone service must be enabled by the service provider.
- Cable: Use to connect to the coaxial cable from your Internet service provider. Ethernet (Internet): Connects to an Ethernet-enabled device such as a wireless router using an RJ45 Ethernet cable.
- Power: Connects to the power adapter. Plug the other end into the wall power outlet.
- Battery: Use to connect to an optional external battery. The battery connection is for voice services.
Installing Modem
- Connect the coaxial cable (not supplied) to the Cable connector on the rear panel of the eMTA and connect the other end to the cable wall outlet. Do not bend or over tighten the cables, as this may strain the connector and cause damage. To connect an eMTA and a television to the same wall outlet, you must use a cable line splitter (not included).
- Connect the Ethernet cable (supplied) to the Ethernet (Internet) port on the back panel of the eMTA and connect the other end to an Ethernet port on a wireless router (or other Ethernet-enabled device).
- Connect an RJ-11 phone cable (not supplied) to the Voice 1 or 2 port on the modem (when provisioned for voice service as specified by the service provider), and connect the other end to the phone port of the telephone. If voice service is not provisioned through the service provider, telephone service is not available.
- Connect the power adapter (supplied) to the Power port on the modem. Connect the other end to a power outlet.
Installation Diagram
Device Wall Mount Instructions
You can mount the modem on a wall using the 2 mounting brackets on the side of the device. Two round or
pan head screws are recommended. See the figure below for measurements
| Label | Size in Millimeters (mm) |
| A | 9.5 +/- 0.2 |
| B | 3.7 +/- 0.1 |
| C | 34.5 +/- 0.2 |
To mount the device on a wall:
- Install the 2 screws horizontally on the wall 140 mm (5.51 inches) apart.
Mount the device on the wall.
Mount the device on the wall.Resetting the Modem
Front Panel:
- Reset: Use the reset button to either reboot (power cycle) the modem or reset the device to factory default settings. When the reset button is pressed and held for 4 to 10 seconds, the device will reboot (power cycle). If the reset button is pressed and held for 10 seconds or more, the Spectrum eMTA will reset to factory default settings. Refer to the LED Behavior table on page 5 for the reset button LED behavior.
- Factory reset: Press and hold for more than 10 seconds to reset modem to factory default settings.
Note: You will see the ring and text illuminate when you press the button.
LED Behavior
| LEDs | Color | Description |
| Power Status Light | Blue | • Powering Up: Flashing between On Blue and Off • Normal Operation: On Blue |
| Online Status Light | Blue White | • Determining Connection: Easing between On Blue and On White • Device has entered DOCSIS 3.0 Bonded State: On White • Device has entered DOCSIS 3.1 Bonded State: On Blue • Network Access Denied: Off |
| Voice Status Light | Blue | • Voice Service Not Provisioned: Off • Voice Service Active: On Blue • Phone Cable Connected to Voice Port: On Blue • Phone Cable Not Connected to Voice Port: On Blue • Phone Off-Hook: Easing between On Blue and Off • Phone Off-Hook and the modem is connected to an optional external battery: Flashing between On Blue and Off • Unable to Establish Phone Connection: Off |
| Battery Status Light (NOTE: external battery is optional) | BLUE RED | • Battery at 21% (of usable charge) or Higher: On Blue • Battery at 20% (of usable charge) or Lower: On Red • Battery at 10% (of usable charge) or Lower: Flashing between On Red and Off • No Battery Installed: Off • Battery Charging: Easing between On Blue and Off |
| Ethernet (Internet) Left Status Light | Green Amber | • On Green – An Ethernet Device is Connected at 100 Mbps • On Amber – An Ethernet Device is Connected at 2500 Mbps (2.5G) • Off – An Ethernet Device is Connected at 100 Mbps |
| Ethernet (Internet) Right Status Light | Amber | • On Amber – Data is Being Passed Between the modem and the Connected Device • Off – No link is established |
Product Specifications
Interfaces & Standards
- Cable: F-Connector, female
- Models: E31N2V1, E31T2V1, E31U2V1
- LAN: One 10/100/1000 Mbps RJ-45 port
- Models: EN 2251, ET 2251, EU 2251, ES2251
- LAN: One 10/100/2.5 Gbps RJ-45 port
- Telephony: 2 RJ-11 ports
- Packet Cable 1.5 (NCS) or 2.0 (IMS/SIP) compatible
- DOCSIS 3.1 certified
Downstream*
- Frequency Range: 258 MHz-1218 MHz
- Capture Bandwidth: 1.218 GHz
- Modulation: 64 or 256 QAM and OFDM: up to 4096 QAM
- Maximum DOCSIS 3.1 Data Rate: 2 x 192 MHz OF DM channels provide capacity up to 5 Gbps
- Maximum DOCSIS 3.0 Data Rate: 32 downstream channels provide speeds up to 1372 Mbps
- Symbol Rate: 5361 Ksps
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
Security
- DOS (denial of service) attack protection
Regulatory
- UL/FCC Class B, Energy Star Certified
Physical and Environmental
- Dimensions: 70.8 mm, 2.8 inches (W), 215 mm, 8.46 inches (H), 170 mm, 6.7 inches (D)
- Weight: 632.6 g (1.4 lbs), unit only
- Power: 12V 1.5A (output), 100-240 VAC, 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
