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תכונות המוצר:
AC1900 MU-MIMO Wi-Fi Gigabit Router
מאפיינים כללים:
Hardware
Processor
• MT7621A (880MHz, dual core)
RAM
• 128MB, DDR3
Flash
• 16MB, SPI
Interfaces
• 10/100/1000BASE-T WAN port
• 4 10/100/1000BASE-T LAN ports
LEDs
• POWER
• INTERNET
• WLAN 2.4G
• WLAN 5G
Buttons
• POWER button to power on/power off
• WiFi button to enable/disable wireless network
• WPS button to set up wireless connection
• RESET button to restore factory default settings
Antenna
• Four external non-detachable antennas 5dBi gain
MIMO
• 3 x 3
Power connector
• Power input connector (DC)
Software
WAN connection types
• PPPoE
• IPv6 PPPoE
• PPPoE Dual Stack
• Static IPv4 / Dynamic IPv4
• Static IPv6 / Dynamic IPv6
• PPPoE + Static IP (PPPoE Dual Access)
• PPPoE + Dynamic IP (PPPoE Dual Access)
• PPTP/L2TP + Static IP
• PPTP/L2TP + Dynamic IP
Network functions
• Support of IEEE 802.1X for Internet connection
• DHCP server/relay
• Stateful/Stateless mode for IPv6 address assignment, IPv6 prefix delegation
• Automatic obtainment of LAN IP address (for access point/repeater/client modes)
• 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
• WAN reservation
• 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
• Built-in SafeDNS 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)
• Support of Click'n'Connect application for Android smartphones
• 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
• IEEE 802.11a/n/ac
• IEEE 802.11b/g/n
Frequency range
• 2400 ~ 2483.5MHz
• 5150 ~ 5350MHz
• 5650 ~ 5725MHz
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
• Smart adjustment of Wi-Fi clients
• Guest Wi-Fi / support of MBSSID
• Periodic scan of channels, automatic switch to least loaded channel
• Support of 802.11ac (5GHz) and 802.11n (2.4GHz) TX Beamforming
Wireless connection rate1
• IEEE 802.11a: 6, 9, 12, 18, 24, 36, 48, and 54Mbps
• IEEE 802.11b: 1, 2, 5.5, and 11Mbps
• IEEE 802.11g: 6, 9, 12, 18, 24, 36, 48, and 54Mbps
• IEEE 802.11n (2.4GHz): 6,5–450Mbps (MCS0–MCS23) to 600Mbps (QAM256)
• IEEE 802.11n (5GHz): from 6,5 to 450Mbps (from MCS0 to MCS23)
• IEEE 802.11ac (5GHz): from 6,5 to 1300Mbps (from MCS0 to MSC9)
Transmitter output power
 
The maximum value of the transmitter output power depends upon the radio frequency regulations applied in your country
• 802.11a (typical at room temperature 25 °C)
15dBm at 6, 54Mbps
 
• 802.11b (typical at room temperature 25 °C)
15dBm at 1, 11Mbps
 
• 802.11g (typical at room temperature 25 °C)
15dBm at 6, 54Mbps
 
• 802.11n (typical at room temperature 25 °C)
2.4GHz
15dBm at MCS0, 7
5GHz
15dBm at MCS0, 7
 
• 802.11ac (typical at room temperature 25 °C)
15dBm at MCS0, 9
Receiver sensitivity
• 802.11a
-96dBm at 6Mbps
-78dBm at 54Mbps
 
• 802.11b
-96dBm at 1Mbps
-90dBm at 11Mbps
 
• 802.11g
-95dBm at 6Mbps
-76dBm at 54Mbps
 
• 802.11n
2.4GHz, HT20
-95dBm at MCS0
-76dBm at MCS7
2.4GHz, HT40
-92dBm at MCS0
-72dBm at MCS7
5GHz, HT20
-95dBm at MCS0
-76dBm at MCS7
5GHz, HT40
-93dBm at MCS0
-73dBm at MCS7
 
• 802.11ac
VHT20
-96dBm at MCS0
-73dBm at MCS8
VHT40
-92dBm at MCS0
-68dBm at MCS9
VHT80
-88dBm at MCS0
-64dBm at MCS9
Modulation schemes
• 802.11a: BPSK, QPSK, 16QAM, 64QAM with OFDM
• 802.11b: DQPSK, DBPSK, DSSS, CCK
• 802.11g: BPSK, QPSK, 16QAM, 64QAM with OFDM
• 802.11n: BPSK, QPSK, 16QAM, 64QAM, 256QAM with OFDM
• 802.11ac: BPSK, QPSK, 16QAM, 64QAM, up to 256QAM with OFDM
Physical Parameters
Dimensions (L x W x H)
• 259 x 184 x 46 mm (10.8 x 7.24 x 1.81 in)
Weight
• 565 g (1.25 lb)
Operating Environment
Power
• Output: 12V DC, 1.5A
Temperature
• Operating: from 0 to 40 °C
• Storage: from -20 to 65 °C
Humidity
• Operating: from 10% to 90% (non-condensing)
• Storage: from 5% to 95% (non-condensing)
Delivery Package
• Router DIR-878
• Power adapter DC 12V/1.5A
• Ethernet cable (CAT 5E)
• “Quick Installation Guide” (brochure)
 
1Maximum wireless signal rate is derived from IEEE standard 802.11ac and 802.11n specifications. In order to get the rate of 600Mbps in the 2.4GHz band, a Wi-Fi client should support MIMO 3x3 and QAM256 modulation scheme. Actual data throughput will vary. Network conditions and environmental factors, including volume of network traffic, building materials and construction, and network overhead, lower actual data throughput rate. Environmental factors will adversely affect wireless signal range.

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