Datasheet

COM port server
COM-port server for DIN and USB interfaces. For multiple serial devices connected to it, the server also manages its own virtual COM ports via
Telnet (RFC 2217) for remote maintenance (works with popular virtual COM-port drivers compliant with RFC 2217). Switchable newline conversion
and alternative binary mode. TCP keepalive according to RFC 1122 with configurable keepalive interval, retransmission timeout and retries
COM port forwarding
USB print server
Host port for connecting USB printers via RAW-IP and LPD; bi-directional data exchange is possiblePrint server (USB 2.0)
LAN protocols
ARP, proxy ARP, BOOTP, LANCAPI, DHCP, DNS, HTTP, HTTPS, IP, ICMP, NTP/SNTP, NetBIOS, PPPoE (server), RADIUS, RIP-1, RIP-2, RTP, SIP, SNMP,
TCP, TFTP, UDP, VRRP
IP
802.1d Spanning Tree and 802.1w Rapid Spanning Tree support for dynamic path selection with redundant layer 2 connectionsRapid Spanning Tree
NDP, stateless address autoconfiguration (SLAAC), stateful address autoconfiguration (with DHCPv6), router advertisements, ICMPv6, DHCPv6,
DNS, HTTP, HTTPS, PPPoE, TCP, UDP
IPv6
IPv6
IPv4/IPv6 dual stackDual Stack
WEBconfig, HTTP, HTTPS, SSH, Telnet, DNS, TFTP, FirewallIPv6 compatible LCOS applications
WAN protocols
PPPoE, PPPoA, IPoA, Multi-PPPoE, ML-PPP, PPTP (PAC or PNS) and IPoE (with or without DHCP), RIP-1, RIP-2, VLANADSL, Ethernet
IPv6 over PPP (IPv6 and IPv4/IPv6 dual stack session), IPoE (autoconfiguration, DHCPv6 or static)IPv6
6to4, 6in4, 6rd (static and via DHCP)Tunneling protocols (IPv4/IPv6)
WAN operating mode
ADSL1, ADSL2 or ADSL2+ with internal ADSL2+ modemxDSL
ADSL1, ADSL2 or ADSL2+ with external ADSL2+ modemxDSL (ext. modem)
UMTS/HSDPA with external module at the USB interfaceUMTS/HSDPA* (ext. module)
ISDN data or voice usage via internal ISDN interfaceISDN
Analog or GPRS operation via serial interfaceAnalog/GPRS (ext. modem)
A UMTS USB modem is not supplied. Supported UMTS USB modems at www.lancom.eu/umts-support*) Note:
Interfaces
1
Compliant to: ADSL2+ as per ITU G.992.5 Annex A/Annex B/Annex J/Annex M with DPBO, ADSL2 as per ITU G.992.3 Annex A/Annex B/Annex
J/Annex M, ADSL as per ITU.G.992.1 Annex A/Annex B
1
Supports one virtual ATM circuit (VPI, VCI pair) at a time
1
Compliant to: Deutsche Telekom U-R2 (1TR112)
WAN: ADSL2+
4 individual 10/100/1000 Mbps Ethernet ports; up to 3 ports can be operated as additional WAN ports with load balancing. Ethernet ports can be
electrically disabled within LCOS configuration. The ports support energy saving according to IEEE 802.3az
Ethernet ports
Each Ethernet port can be freely configured (LAN, DMZ, WAN, monitor port, off). LAN ports can be operated as a switch or separately. Additionally,
external DSL modems or termination routers can be operated as a WAN port with load balancing and policy-based routing. DMZ ports can be
operated with their own IP address range without NAT
Port configuration
USB 2.0 hi-speed host port for connecting USB printers (USB print server), serial devices (COM port server), USB data storage (FAT file system) or
supported 3G USB modems; bi-directional data exchange is possible*
USB 2.0 host port
ISDN BRI port (S0 bus)ISDN
Serial configuration interface / COM port (8 pin Mini-DIN): 9,600 - 115,000 baud, suitable for optional connection of analog/GPRS modems. Supports
internal COM port server and allows for transparent asynchronous transmission of serial data via TCP
Serial interface
Two reverse SMA connectors for external LANCOM AirLancer Extender antennas or for antennas from other vendors. Please respect the restrictions
which apply in your country when setting up an antenna system. For information about calculating the correct antenna setup, please refer to
www.lancom-systems.com
External antenna connectors
A UMTS USB modem is not supplied. Supported UMTS USB modems at www.lancom.eu/umts-support*) Note
LANCOM 1781AW
Features as of: LCOS 8.84