Touchstone TM822S Cable 8x4 Telephony Modem
Feature Highlights
DOCSIS 3.0 / EuroDOCSIS 3.0 WAN Access8x4 Channel Bonding
1 x Gigabit Ethernet LAN
2 x FXS Phone
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The Touchstone DOCSIS 3.0 8x4 Embedded Multimedia Terminal Adaptor (EMTA) TM822 delivers two lines of primary line Voice over IP (VoIP), ultra-high speed data access, and multiple battery pack options to support telephony service during power outages (TM822G only). Designed to support the services desired most by advanced users, the TM822 enables the home or small business user to address productivity needs with the speed and performance found only in the 8x4 bonded channel cable environment, along with industry-leading ARRIS voice and battery back-up features. With the TM822, cable operators can offer data services at speeds greater than 300Mbps to their subscribers to compete against VDSL and !ber to the home competitive offerings.
| Physical | |
|---|---|
| Operating Temperature °F (°C) | 32 to 122 (0 to 50) |
| Operating Relative Humidity (Min–Max) | 5–95% (non-condensing) |
| Storage Temperature °F (°C) | -40 to 158 (-40 to 70) |
| Dimensions (H × W × D) in. (cm) | 7.3 × 1.7 × 6.2 (18.5 × 4.3 × 15.8) – excluding F-connector |
| Weight lbs (kg) | 1.0 (0.45) |
| Diagnostic LEDs | Power, DS, US, Online, Link, Tel 1, Tel 2 |
| Interfaces | |
| RF Interface | External 75 ohm “F” type connector |
| Data Interface | 10/100/1000 Base-T Ethernet RJ-45 |
| Telephony Interface | 2 lines; RJ-11 |
| Input Voltage (nominal) | 115–240 VAC 50/60 Hz |
| Power Switch Equipped | On TM822ES model only |
| Power Consumption (W) | 5.5 (idle) |
| Telephony | |
| Supervisory Voltage | 48 VDC nominal |
| Maximum Loop Length to CPE | 1000 ft (305 m) of 26 AWG (0.4 mm) wire |
| Ringing Load Capacity | 10 REN total; 5 per line |
| Provisionable High Loop Current Mode | Yes |
| Telcordia GR 1089 (Lightning and Power Surge) Tested | Yes |
| Programmable Interface for Worldwide Applications | Yes |
| RF Downstream | |
| Frequency Range (MHz) | 108–1002 (edge-to-edge) |
| Bonded Channels | up to 8 |
| Number of Tuners | 2 |
| Capture Bandwidth (MHz) | 96 (per tuner, 192 MHz total) |
| Modulation (QAM) | 64 or 256 |
| Data Rate (Mbps, Theoretical) | up to 343 Note: Maximum raw DOCSIS rate; actual throughput is less due to overhead, configuration, and RF conditions |
| RF Input Sensitivity Level (dBmV) | -15 to +15 |
| Carrier Bandwidth (MHz) | 6 MHz (DOCSIS mode) or 8 MHz (EuroDOCSIS mode) |
| Embedded MoCA Immunity Filter | Yes |
| RF Upstream | |
| Frequency Range (MHz) | 5–42 (DOCSIS mode) or 5–65 (EuroDOCSIS mode) |
| Bonded Channels | up to 4 |
| Modulation | QPSK, 8QAM, 16QAM, 32QAM, 64QAM, 128QAM (S-CDMA only) |
| Modulation Bandwidth (kHz) | 200, 400, 800, 1600, 3200, 6400 (TDMA) 1600, 3200, 6400 (S-CDMA) |
| Data Rate (Mbps, Theoretical) | up to 122 Note: Maximum raw DOCSIS rate; actual throughput is less due to overhead, configuration, and RF conditions |
| RF Output Level (dBmV – one channel) |
TDMA: +17 to 61 (QPSK); +17 to 58 (8QAM, 16QAM); +17 to 57 (32QAM, 64QAM) Note: A-TDMA max output power reduced 3 dB when transmitting 2 channels and 6 dB when transmitting 3 or 4 channels. S-CDMA: +17 to +56 (all modulations) Note: S-CDMA max output reduced 3 dB when transmitting 2 or more channels. |
| Automatic Level Adjust | Yes |
| Frequency Stability (kHz) | ±5 |
| Output Impedance (Ohms) | 75 |
TM822S/CE