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LANCOM, LANCOM Systems and LCOS are registered trademarks. All other names or descriptions used may be trademarks or registered
trademarks of their owners. Subject to change without notice. No liability for technical errors and/or omissions. 111632/0617
Serial interface
You can connect the
device to a PC with a
congurationcable
( available separately).
Ethernet interface
Use the cable with the
kiwi-colored connectors
to connect one of the
interfaces ETH 1 to ETH 4
to your PC or a LAN switch.
4
Please observe the
following when setting
up the device
a For devices to be
operated on the
desktop, please attach
the adhesive rubber
footpads
a Do not rest any objects
on top of the device
a Keep the ventilation
slots on the side of
the device clear of
obstruction
a In case of wall
mounting, use the
drilling template as
supplied
a Rack installation with
the optional LANCOM
Rack Mount (not
supplied)
LANCOM 1681V
Power
VDSL
Online
ETH 1
ETH 2
VPN
ETH 3
ETH 4
ISDN Status
Power
When connecting the
cable to the device, turn
the bayonet connector
90° clockwise until it
clicks into place.
Use only the supplied
power adapter.
Hardware
Power supply 12 V DC, external power adapter (230 V); bayonet connector to secure against disconnection
Power consumption Max. ca. 14 W
Environment Temperature range 0 – 40 °C, humidity 0 – 95 %,non-condensing
Housing Robust synthetic housing, rear connectors, ready for wall mounting,
Kensington lock; measures 210 x 45 x 140 mm (W x H x D)
Number of fans None; fanless design, no rotating parts, high MTBF
Interfaces LANCOM 1781VA over ISDN LANCOM 1781VA over POTS
WAN: VDSL2 a Automatic detection of Deutsche Telekom
VDSL lines with VLAN ID 7
a Compatible to Deutsche Telekom VDSL2
a VDSL2 as per ITU G.993.2;
proles8a,8b,8c,8d,12a,12b,17a
a VDSL2 Vectoring as per ITU G.993.5
a ADSL conformity according to: ADSL2+
over ISDN as per ITU G.992.5 Annex B/J
with DPBO; ADSL2 over ISDN as per ITU
G.992.3 Annex B, ADSL over ISDN as per
ITU G.992.1 Annex B
a Compatible to Deutsche Telekom U-R2 lines
(1TR112)
a Supports one virtual connection at a time in
ATM (VPI-VCI pair)
a VDSL2 as per ITU G.993.2;
proles8a,8b,8c,8d,12a,12b,17a
a VDSL2 Vectoring as per ITU G.993.5
a Compliant to: ADSL2+ over POTS as per
ITU G.992.5 Annex A/Annex M with DPBO,
ADSL2 over POTS as per ITU G.992.3
Annex A/L, ADSL over POTS as per
ITU G.992.1 Annex A
a Supports just one virtual connection at a
time in ATM (VPI-VCI pair)
ETH 4 individual ports, 10 / 100 / 1000 Mbps Gigabit Ethernet, by default set to switch mode.
Up to 3 ports can be operated as additional WAN ports. Ethernet ports can be electrically
disabledintheLCOSconguration.
USB USB 2.0 Hi-Speed host port for connecting USB printers (USB print server), serial devices
(COM-portservers),USBdatamedia(FATlesystem),orsupportedUMTSUSBmodems
ISDN ISDN S
0
bus
Serial Interface Serialconguration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 provides
transparent asynchronous serial-data transfer via TCP.
WAN protocols
VDSL, ADSL, Ethernet PPPoE, PPPoA, IPoA, Multi-PPPoE, ML-PPP, PPTP (PAC or PNS) and IPoE (with or without
DHCP), RIP-1, RIP-2, VLAN, GRE, L2TPv2 (LAC or LNS), IPv6 over PPP (IPv6 and
IPv4/IPv6dualstacksession),IP(v6)oE(autoconguration,DHCPv6orstatic)
ISDN 1TR6, DSS1 (Euro-ISDN), PPP, X75, HDLC, ML-PPP, V.110/GSM/HSCSD
Declaration of Conformity
Hereby, LANCOM Systems declares that this device is in compliance with Directives 2014/30/EU and 2014/35/EU.
The full text of the EU declaration of conformity is available at the following internet address:
www.lancom-systems.com/ce/
Package content
Manual Hardware Quick Reference (DE/EN), Installation Guide (DE/EN)
Cable 1 Ethernet cable, 3 m (kiwi-colored connectors); 1 ISDN cable, 3 m (light-blue connectors),
for ISDN: 1 DSL cable for an IP-based line, 4.25m,
for over POTS: 1 DSL cable, 3 m (dark-blue connectors)
Power adapter External power supply adapter (230 V), NEST 12 V / 1.5 A DC/S, barrel connector 2.1 / 5.5 mm
bayonet, LANCOM item no. 111301 (EU, 230V); LANCOM item no. 111302 (UK, 230V)
a Power
Off Device switched off
Green,
permanently*
Device operational, resp. device paired /
claimed and LANCOM Management Cloud
(LMC) accessible
Green/orange,
blinking
Congurationpasswordnotset.Withouta
congurationpassword,theconguration
data in the device is unprotected.
Red, blinking Charge or time limit reached
1x green inverse
blinking*
Connection to the LMC active, pairing OK,
device not claimed
2x green inverse
blinking*
Pairing error, resp. LMC activation code
not available
3x green inverse
blinking*
LMC not accessible, resp. communication
error
b Online
Off WAN connection inactive
Green, permanently WAN connection active
Red, permanently WAN connection error
f VPN
Off VPN connection inactive
Green, permanently VPN connection active
Green, blinking Establishing VPN connections
e ETH
Off No networking device attached
Green, permanently Connection to network device operational,
nodatatrafc
Green,ickering Data transmission
d ISDN
Off interface deactivated
Green, permanently D-channel active
Orange, permanently B-channel active
Green,ickering ISDN data transmission
Red,ickering ISDN transmission error
Red/orange, blinking ISDN hardware error
USB interface
Connect a USB storage
device or a USB printer to
the USB interface.
USB cable not included in
the package.
ISDN interface
Use the ISDN cable with
the light-blue connectors
to connect the ISDN
interface to the NTBA if
you wish to use ISDN.
c DSL
Off interface deactivated
Green, permanently DSL connection active
Green,ickering DSL data transmission
Red,ickering DSL transmission error
Red/orange, blinking DSL hardware error
VDSL interface
Use the supplied DSL cable
for the IP-based line to
connect the VDSL/ADSL
interface and the
provider‘s telephone socket.
(For more information,
please contact your Internet
service provider.)
*For operation with over
POTS devices please use the
DSL cable with the dark blue
plugs.
SETTING UP AND CONNECTING THE DEVICE
TECHNICAL DATA
a
b c d
e
f
LANCOM 1781VA
Quick Reference Guide
Cloud-ready
a
LANCOM 1781VA
DSL
ETH 2
Power
ETH 1
Online
ISDN
ETH 4
ETH 3
VPN
c d
b
fe
VDSL
a b c d e f
*) The additional power LED statuses are displayed in 5-seconds rotation
ifthedeviceisconguredtobemanagedbytheLANCOMManagement
Cloud.
This product contains separate open-source software components which are subject to their own licenses, in particular
theGeneralPublicLicense(GPL).Thelicenseinformationforthedevicermware(LCOS)isavailableonthedevice‘s
WEBconginterfaceunder“Extras>Licenseinformation“.Iftherespectivelicensedemands,thesourcelesforthe
corresponding software components will be made available on a download server upon request.


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Others manual(s) of Lancom 1781VA

Lancom 1781VA Installation Guide - English - 18 pages

Lancom 1781VA Installation Guide - German - 18 pages

Lancom 1781VA Quick start guide - German - 1 pages


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