The DCH-M225 Wi-Fi Audio Extender is a portable plug-in repeater that lets you extend an existing wireless network. It also has the ability to stream your music library to anywhere within your extended wireless network. Tiny yet powerful, it supports Wireless N speeds of up to 300 Mbps* in a device that fits in the palm of your hand.
Compact, Convenient Design
The DCH-M225‘s compact design is ideal for use at home or a small office, as it does not take up much space and is ready to use by simply plugging it in. The repeater’s small form means it can easily be plugged into a power outlet without blocking other outlets while its wall wart design saves you the hassle of dealing with a power cord. Its sleek, unobtrusive appearance means it blends easily into the background.
Conveniently Stream Audio
Expanding your audio capabilities has never been easier with the help of the DCH-M225. With support for both DLNA and AirPlay, simply plug in your speakers and you’ll be able to stream audio to anywhere within your wireless network. The Wi-Fi WMM quality of service protocol ensures that you’ll have no issues with bandwidth when streaming audio and performing other task such as surfing the Internet, checking email, or online gaming.
Easy to Set Up, Easy to Use
Setting up the Wi-Fi Audio Extender is simple to do with several convenient ways. You can use the supported QRS Mobile app on your iOS or Android mobile device to set up the DCH-M225 easily without needing to be at a computer. Alternatively, you can use One-touch configuration by pushing the WPS push-button on the DCH-M225 and on the router or AP you want to extend. You can also simply plug the DCH-M225 in, connect to it wirelessly with a PC or mobile device, and follow the steps in the built-in Setup Wizard to configure the DCH-M225.
Hardware
Processor
RAM
Flash
Interfaces
- 10/100BASE-TX WAN port
- 4 10/100BASE-TX LAN ports
- FXS port
LEDs
- POWER
- WAN
- 4 LAN LEDs
- WLAN
- WPS
- FXS1
Buttons
- ON/OFF button to power on/power off
- RESET button to restore factory default settings
- WPS button to set up wireless connection
- WLAN button to enable/disable wireless network
Antenna
- Two internal omnidirectional Airgain antennas (5dBi gain)
MIMO
Power connector
- Power input connector (DC)
Phone
General SIP Features
- Invite with Challenge
- Register by IP address or domain name of SIP server
- Backup proxy support
- Support of DHCP option 120
- RFC3986 SIP URI format support
- Outbound proxy support
- STUN client
- NAT public IP address
- NAT keep-alive
- Session timer (re-invite)
- Call types: voice/modem/fax
- User programmable Dial Plan
- Manual peer table (for P2P calls)
- E.164 Numbering, ENUM support
Call Features
- Direct IP-to-IP сall without SIP proxy
- Call hold / retrieve
- Call awaiting
- Forwarding (unconditional, busy, no answer)
- Do Not Disturb
- Anonymous call blocking
- Speed dialing
- Phone book
- Hotline
- Vertical service codes
- CLIR
- Filtering by IP address (white/black list)
- Call logging
Voice Features
- Codecs: G.711 a/μ-law, G.729A, G.726, G.722
- DTMF detection and generation
- In-band DTMF, out-of-band DTMF (RFC2833, SIP-INFO)
- Comfort Noise Generation (CNG)
- Voice Activity Detection (VAD)
- Adaptive (Dynamic) Jitter Buffer
- Call progress tone generation (FXS)
- DTMF/PULSE dial support
- Caller ID detection and generation
- T.30 FAX bypass to G.711, T.38 Real Time FAX Relay
- Volume control (speaker/microphone)
Software
WAN connection types
- PPPoE
- IPv6 PPPoE
- PPPoE Dual Stack
- Static IPv4 / Dynamic IPv4
- Static IPv6 / Dynamic IPv6
- PPPoE + Static IP / Dynamic IP (PPPoE Dual Access)
- PPTP/L2TP + Static IP
- PPTP/L2TP + Dynamic IP
Network functions
- DHCP server/relay
- Stateful/Stateless mode for IPv6 address assignment, IPv6 prefix delegation
- DNS relay
- Dynamic DNS
- Static IP routing
- Static IPv6 routing
- IGMP Proxy
- RIP
- Support of UPnP IGD
- Support of VLAN
- WAN ping respond
- Support of SIP ALG
- Support of RTSP
- Autonegotiation of speed, duplex mode, and flow control/Manual speed and duplex mode setup for each Ethernet port
- Built-in UDPXY application
Firewall functions
- Network Address Translation (NAT)
- Stateful Packet Inspection (SPI)
- IP filter
- IPv6 filter
- MAC filter
- URL filter
- DMZ
- Prevention of ARP and DDoS attacks
- Virtual servers
- Built-in Yandex.DNS web content filtering service
VPN
- IPsec/PPTP/L2TP/PPPoE pass-through
- IPsec tunnels
Management
- Local and remote access to settings through TELNET/WEB (HTTP/HTTPS)
- Bilingual web-based interface for configuration and management (Russian/English)
- Notification on connection problems and auto redirect to settings
- Firmware update via web-based interface
- Automatic notification on new firmware version
- Saving/restoring configuration to/from file
- Support of logging to remote host
- Automatic synchronization of system time with NTP server and manual time/date setup
- Ping utility
- Traceroute utility
- TR-069 client
Wireless Module Parameters
Standards
Frequency range
Wireless connection security
- WEP
- WPA/WPA2 (Personal/Enterprise)
- МАС filter
- WPS (PBC/PIN)
Advanced functions
- Support of client mode
- WMM (Wi-Fi QoS)
- Information on connected Wi-Fi clients
- Advanced settings
- Guest Wi-Fi / support of MBSSID
- Autonegotiation of channel bandwidth in accordance with environment conditions (20/40 Coexistence)
Wireless connection rate
- IEEE 802.11b: 1, 2, 5.5, and 11Mbps
- IEEE 802.11g: 6, 9, 12, 18, 24, 36, 48, and 54Mbps
- IEEE 802.11n: from 6.5 to 300Mbps (from MCS0 to MCS15)
Transmitter output power
- 802.11b (typical at room temperature 25 °C) 15dBm (+/-1.5dB) at 11Mbps
- 802.11g (typical at room temperature 25 °C) 16dBm (+/-1.5dB) at 54Mbps
- 802.11n (typical at room temperature 25 °C) / HT20 16dBm (+/-1.5dB) at MCS7 / HT40 13,5dBm (+/-1.5dB) at MCS7
Note:
The maximum value of the transmitter output power depends upon the radio frequency regulations applied in your country
Receiver sensitivity
- 802.11b (typical at PER = 8% (1000-byte PDUs) at room temperature 25 °C) -76dBm at 11Mbps
- 802.11g (typical at PER = 10% (1000-byte PDUs) at room temperature 25 °C) -68dBm at 54Mbps
- 802.11n (typical at PER = 10% (1000-byte PDUs)) / HT20 -67dBm at MCS7 / HT40 -64dBm at MCS7
Modulation schemes
- 802.11b: DQPSK, DBPSK, DSSS, CCK
- 802.11g: BPSK, QPSK, 16QAM, 64QAM with OFDM
- 802.11n: BPSK, QPSK, 16QAM, 64QAM with OFDM
Delivery Package
- Router DVG-N5402SP
- Power adapter DC 12V/1.25A
- Ethernet cable (CAT 5E)
- RJ-11 telephone cable
- Quick installation guide (brochure)
