11ac LTE VoIP Router

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1. Product Overview
1-1. Introduction
11AC LTE VOIP ROUTER integrated access device (IAD) combines high performance 4G LTE module and 802.11ac/b/g/n wireless LAN (WLAN), along with high speed 10/100/1000M Mbps Ethernet switching, and voice over IP (VoIP) for IADs.
11AC LTE VOIP ROUTER has Quectel LTE module EP06,which is a multimode wireless communication module with mini-PCIE express interface, and provides equipment with high-speed data access service in mobile environment (LTE FDD, UTMS and GSM network). 11AC LTE VOIP ROUTER provides WLAN 802.11ac/b/g/n and the following security protocols: WEP, WPA, WPA2, and 802.1x. It also provides VoIP via standard analog phones with FXS.

1-2. Specifications


1-2-1. Realtek RTL8685PB Features

RTL8685PB is an integrated System-on-a-Chip (SoC) with dual CPU MIPS interAptiv™ and RLX5281, a VDSL2/ADSL2+ Discrete Multi-tone (DMT) data-pump, a PTM/ATM, hardware-based ATM Segmentation and Reassembly (SAR) , a packet forwarding engine, USB, PCIE interface. RTL8685PB support the MIPS interAptiv™ with clock rate up to 1GHz dual core (RTL8685PB-VA5 for 1Ghz, RTL8685PB-VF5 for 750Mhz) and integrates an RLX5281 processor with clock rate up to 500MHz dual with DSP for VoIP. A standard 5-signal P1149.1 compliant EJTAG test interface is supported for CPU (RLX5281 and MIPS IA) testing and software development.
  • MIPS interAptiv™ CPU
    1. RTL8685PB-VA5 for 1Ghz
    2. RTL8685PB-VF5 for 750Mhz
    3. 2 coherent MIPS32® interAptiv™ CPU cores
    4. Instruction L1 Cache: 64KB, 4-way set, 32 byte line size
    5. Data L1 Cache: 32KB, 4-way set, 32 byte line size
    6. L2 Cache: 256KB, 8-way set, 32 byte line size
  • RLX5281 500MHz CPU
    1. Instruction L1 Cache: 64KB, 4-way set, 32 byte line size
    2. Data L1 Cache: 32KB, 4-way set, 32 byte line size, write back policy
    3. Virtually indexed, physically tagged
    4. PREF instruction
    5. Internal Memory IMEM: 16KB + 16KB DMEM: 4KB + 4KB
  • MISC
    1. Power-down mode (Sleep instruction)
    2. EJTAG support
    3. Internal BIST
    4. Internal real-time timer interrupts (Count/Compare registers)
    5. 2 HW instruction breakpoint/1 HW data breakpoint
    6. Supports six hardware timers and one watchdog timer

CPU Interface (NIC)
  • The NIC DMA support multiple-descriptor-ring architecture for QoS applications

Serial Flash (SPI Type)
  • Supports serial and dual I/O mode for SPI Flash application
  • Targeted SPI flash frequency: up to 100MHz
  • Flash capacity up to 16Mbyte for 3Byte address mode, and 64Mbytess for 4Byte address mode
  • Boot up from SPI flash is supported

 Serial NAND (SPI Type)
  • Supports serial and dual I/O mode for SPI Flash application
  • Targeted SPI flash frequency: up to 100MHz
  • Flash capacity up to 256Mbyte
  • Boot up from ROM for SPI NAND flash model is supported

 Two-chip ADSL2+/VDSL2 CPE Solution:
  • RTL8685PB(ADSL2+/VDSL2 Multiservice SOC)+RTL8275-VS (ADSL2+/VDSL2 Analog Front End)

  • ANSI T1.413 Issue 2
  • ITU-T G.992.1 (G.dmt) Annexes A and B
  • G.992.2 (G.lite) Annexes A and B
  • G.992.3 ADSL2 (G.dmt.bis) Annexes A, B, I, J, L, and M
  • G.992.4 ADSL2 (G.lite.bis)
  • G.992.5 ADSL2+
  • G.993.1 VDSL
  • G.993.2 VDSL2 (35b included)
  • G.998.4 G.INP
  • G.993.5 G.VECTOR
  • Dual bearer channel dual-latency
  • ATM and PTM supported
  • Embedded “Dying-Gasp” detection circuit

  • Supports IEEE 802.3az Energy Efficient Ethernet ability for 1000Base-T, 100Base-TX in full duplex operation and 10Base-T in full/half duplex mode
  • Supports Link Down Power Saving in Ethernet PHYceivers
  • Per-port configurable auto-crossover function

  • PCIe 1.1 interface
  • One USB 2.0 and one USB3.0 interface integrated

1-2-2. Quectel LTE Module EP06 Features

Quectel EP06 is a series of LTE-A Cat 6 module which provides data connectivity on LTE FDD, LTE TDD and WCDMA networks with PCI Express Mini Card 1.2 standard interface. It supports embedded operating systems such as WinCE, Linux, Android, etc., and also provides audio, high-speed data transmission and GNSS functionalities for customers’ applications.
The following table describes the detailed features of EP06 module.


1-2-3. Wireless Features

The RTL8812BRH/RTL8192ER supports fast receiver Automatic Gain Control (AGC) with synchronous and asynchronous control loops among antennas, antenna diversity functions, and adaptive transmit power control functions to obtain better performance in the analog portions of the transceiver.
The RTL8812BRH/RTL8192ER MAC supports 802.11e for multimedia applications, 802.11i and WAPI (Wireless Authentication Privacy Infrastructure) for security, and 802.11n/802.11ac for enhanced MAC protocol efficiency. Using packet aggregation techniques such as A-MPDU with BA and A-MSDU, protocol efficiency is significantly improved. Power saving mechanisms such as Legacy Power Save, U-APSD, and MIMO power saving reduce the power wasted during idle time, and compensate for the extra power required to transmit MIMO OFDM. The RTL8812BRH/RTL8192ER provides simple legacy, 20MHz/40MHz/80MHz co-existence mechanisms to ensure backward and network compatibility.
  • Complies with IEEE 802.11a/b/g/n/ac
  • Support 802.11ac 2x2,Wave-2 compliant with MU-MIMO
  • Complete 802.11n MIMO solution for 2.4GHz and 5GHz band
  • 2x2 MIMO technology for extended reception robustness and exceptional throughput
  • RTL8188AR Maximum PHY data rate up to 173.3Mbps using 20MHz bandwidth, 400Mbps using 40MHz bandwidth, and 866.7Mbps using 80MHz bandwidth.
  • Backward compatible with 802.11a/b/g devices while operating at 802.11n data rate
  • Backward compatible with 802.11a/n devices while operating at 802.11ac data rate
  • Maximum Data rates 54Mbps in 802.11g, 300Mbps in 802.11n and 866.7Mbps in 802.11ac
  • DSSS with DBPSK and DQPSK, CCK modulations with long and short preamble
  • OFDM with BPSK, QPSK, 16QAM, 64QAM an 256QAM modulation. Convolutional Coding Rate of 1/2, 2/3, 3/4 and 5/6
  • Complies with IEEE 802.11e QoS Enhancement (WMM)
  • Complies with IEEE 802.11h TPC, Spectrum Measurement
  • Complies with IEEE 802.11k Radio Resource Measurement
  • IEEE 802.11i (WPA, WPA2). Open, shared key, and pair-wise key authentication services
  • WAPI (Wireless Authentication Privacy Infrastructure) certified
  • Cisco Compatible Extensions (CCX) for WLAN devices
1-2-4. VOIP Features

The miSLICTM Line Circuits together with a VoIP processor or SoC, provides an economical turn-key solution for derived voice applications. The miSLIC devices are controlled by a VoIP processor or SoC through a simple, single serial interface.
The dual channel Le9642 miSLIC device uses an energy efficient shared power supply topology for reduced BOM cost. The Le9642 can be configured for patent-pending shared Buck-Boost Automatic Battery Switching (BBABS) operation. Ringing and system power management are supported to limit the peak power requirements of each telephone line FXS port. The dual channel Le9642 features wideband clarity and complete BORSCHT functionality.
  • Performs all BORSCHT (Battery feed, Over-voltage support, Integrated Ringing, Line Supervision, Codec, Hybrid  and Testing) functions
  • Single chip solution provides high voltage line driving, digital signal processing, and high voltage power generation for two lines
  • Wideband 150 Hz – 6.8 kHz and Narrowband 200 Hz – 3.4 kHz codec modes
  1. Compliant with Cable Labs PacketCable High Definition Voice Specification PKT-SP-HDV-104-120823
  • Exceeds Telcordia GR-909-CORE transmission requirements
  • Single hardware design meets worldwide requirements through software programming of:
  1. Ringing waveform, frequency and amplitude
  2. DC loop-feed characteristics and current-limit
  3. Loop-supervision detection thresholds
  4. Off-hook debounce circuit
  5. Ground-key and ring trip filters
  6. Two-wire AC impedance
  7. Transhybrid balance impedance
  8. Transmit and receive gains and equalization
  9. μ-law/A-law and linear coding selection
  10. Switching power supply
  • Supports loop-start and ground-start signaling
  • On-hook transmission
  • Power/service denial mode
  • Supports wink function
  1. Smooth polarity reversal
  2. Metering generation with envelope shaping
  3. Programmable frequency and duration
  4. Internal Test Termination
  5. Compatible with inexpensive protection networks
  6. Self-contained ringing generation and control
  7. Programmable ringing cadencing
  8. Internal battery-backed balanced , sinusoidal or trapezoidal
  9. Integrated ring-trip filter and software ,manual or automatic ring trip mode
Flexible tone generation
  1. Call progress tone generation
  2. DTMF tone generation
  3. Universal Caller ID generation (FSK and DTMF signaling)
  4. Howler tone generation with VP-API-II
  • DTMF detection with VP-API-II
  1. Integrated switching regulator controller
  2. Generates batteries for each line
  3. Energy efficient in all states
  4. Low idle-power per line
  5. Line-feed characteristics independent of battery voltage
  • VeriVoice Manufacturing Test Suite Software
  1. Monitors two-wire interface voltages and currents for subscriber line diagnostics
  2. Integrated self-test features
  • VerVoice Manufacturing Test Package
  • Supported by VoicePath SDK and VP-API-II
  • Monitors and drivers Tip & Ring independently
  • Built-in voice-path test modes
  • Small physical size in 7x7 mm,48-pin QFN
  • -40℃ to +85℃ operation
  • Low-Power Idle Mode (LPIM)
  1. Voltage-based off-hook detection
  • Supervision ADC for advanced testing
  1. Monitors up to 5 signals in multiplexed mode, such as VTIP,VRING,IM,IL & VBAT
  • Simultaneous ground key / DC fault detection
  • Over current monitoring and blanking
  • Hook and ground key detection with hysteresis and calibrated thresholds
  • On-chip timer functions
  • Tone generators with frequency modulation capability for compliance with BT,NTT and Austel special Howler tone requirements
  • ZSI Interface requires fewer serial interface signals to the host
  1. Less expensive system isolation cost
  2. Supports communication with host processors at 1.8V,2.5V or 3.3V
2. Hardware Architecture

2-1. Hardware Interfaces 
  • Four RJ-45 ports for 10/100/1000 Base-T Ethernet LAN connect to PC
  • One RJ-45 port for 10/100/1000 Base-T Ethernet LAN connect to WAN
  • One RJ-11 port connection to ADSL/VDSL line
  • Two RJ-11 port connection to phone (FXS)
  • One USIM/SIM card connector
  • One USB 3.0 host type A connector
  • One reset button to default setting
  • One WPS button to perform Wi-Fi Protected Setup
  • One power input connector
  • One power switch on/off
  • Two WIFI antenna, two 4G antenna
  • LED indicators
2-2. Block Diagram

2-3. LED Definitions

3. Software Features
3-1. Realtek Linux Router Feature List 


3-2. VoIP Feature List


4. Operation Specifications

4-1. Mechanical

The Mercury has the following properties:
Dimension (LxWxH) mm: TBD
Weight: TBD

4-2. Electrical 

4-2-1. Power Requirements

This Device uses an AV adaptor.
AC power adaptor: 220 VAC, 50/60Hz (can be customized)
AC voltage: 12V, 1.5A

4-2-2. Heat & Power Dissipation 

< 18W

4-3. Electromagnetic Compatibility 


4-4. Environment

Complies with the following standards:
  • Temperature:
- 0 to 40 degrees C (Standard Operating)
- -40 to 70 degree C (Non-operating)
  • Humidity:
- 10% to 90% (Non-condensing, Standard Operating)
-   5% to 95% (Non-condensing, Non-operating)

Design in Taiwan, Made in China