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Mini Cable Modem Termination System

An alternative to larger, more expensive cable modem termination systems (CMTS) and second-hand units with low bandwidth, ATX’s miniCMTS is designed to provide smaller cable operators with the capabilities they need at an exceptional value. The low-cost unit supports up to 400 cable modems depending on the usage model and cable modem type (maximum of 250 DOCSIS 3.0 + 150 DOCSIS 2.0 or 400 DOCSIS 2.0). We recommend a maximum of 400 modems for hospitality applications and a maximum of approximately 200 modems for residential applications or anywhere that a higher usage model applies.

The miniCMTS offers 16 downstream bonded channels for up to 800 Mbps downstream /120 Mbps upstream data delivery. In a residential setting with 200 modems, this data rate provides for a 4 Mbps uncontended internet connection per subscriber.

  • Features
  • Specs & Order Info
  • Other Documents
  • Optimized for smaller cable operators
  • Supports up to 400 DOCSIS cable modems
  • Offers 16 downstream bonded channels
  • Provides high-speed data delivery: 800 Mbps downstream and 120 Mbps upstream
  • Features an intuitive web interface for simple configuration, management, and debugging

Specifications | Ordering Information


QAM Modulation Mode Annex A, B
QAM Modulation 64 QAM, 256 QAM
Data Rate 36 Mbps @ 64 QAM, 50 Mbps @ 256 QAM
Downstream Channel Quantity 16 channel
Downstream Max Speed 800 Mpbs
Frequency Range 87 MHz to 1000 MHz
Channel Bandwidth 8 MHz/6 MHz
Output Power 49 dBmV (8 channel)
45 dBmV (16 channel)
Power Adjusted Range Adjusted 25 dB, step size 0.5 dB
Pre-equalized MER 42 dB
Upstream Modulation QFSK. 16 QAM, 64 QAM
Data Rate 30 Mbps @ 64 QAM (6.4MHz)
Upstream Channel Quantity 4 channel
Upstream Max Rate 120 Mbps
Input Frequency Range 5 MHz to 65 MHz
Input Level Range Bandwidth Bandwidth 6.4 MHz, – 7 dBmV – 23 dBmV
Bandwidth 3.2 MHz, -10 dBmV – 20 dBmV
Bandwidth 1.6 MHz, -13 dBmV – 17 dBmV
RF IN Connector (Upstream) (1) F connector, 75 Ω
RF OUT Connector (Downstream) (1) F connector, 75 Ω
Port Insert Loss < 4 dB
Port Reflect Loss < -12 dB
Net Port Rate 10/100/1000 Mbps
Net Port Type Managed connector, 1 RJ45 Data connector, 1 SFP and 1 RJ45
Command Line Interface (CLI) RS232 serial port
Telnet or SSH
Max Cable Modem Amount 400 DOCSIS 2.0
400 (max. 250 DOCSIS 3.0 + 150 DOCSIS 2.0)
Dymamic Load Balanced Supported
DHCP Relay Supported
Temperature -10 ° C to +50 ° C
Humidity 10% to 90%
Power < 35 Watts (Without optical receiver),
< 45 Watts (With optical receiver)
Power supply 220 V/110 V
Dimension 19″ (L) x 16″ (D) x 1.7″ (H)



Ordering Information

miniCMTS200a Mini Cable Modem Termination System
MCMTS-SF One year annual support and service fee for miniCMTS200a

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