MOUNTING AND CONNEC
TING THE DEVICE
TECHNIC
AL D
A
T
A
4
LANCOM 1681V
Power
VDSL
Online
ETH
1
ETH 2
VP
N
ETH
3
ETH 4
ISDN Statu
s
LANCOM 1781-4G
4G
ETH 2
Signal
Power
ETH 1
Online
ISDN
ETH 4
ETH 3
VPN
a
d
e
f
g
c
b
b
LANCOM, LANCOM S
ystems and L
COS ar
e r
egister
ed tr
ademarks. All other names or descriptions used may be tr
ademarks or r
egister
ed
trademarks of their owners. Subject to change without notice. No liability for technical err
ors and/or omissions. 111723/1117
Serial interface
You can connect the
device to a PC with a
configuration 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.
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)
Power
After 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) with bayonet connector to secure against disconnection
Power consumption
Max. ca.12.5 W
Environment
Temperature range 5 – 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
Data transmission in cellular networks
Supported standards:
LTE, HSPA+, HSxPA, UMTS, EDGE, GPRS
LTE bands
Band 1 (2100 MHz), band 3 (1800 MHz), band 7 (2600 MHz), band 8 (900 MHz), band 20 (DD800
MHz) with MIMO
UMTS-/HSxPA-/HSPA+
bands
Band 1 (2100 MHz), band 8 (900 MHz) with diversity
EDGE-/GPRS bands
GSM 900 (900 MHz), DCS 1800 (1800 MHz), PCS 1900 (1900 MHz)
Maximum transmission
power
+24 dBm
Interfaces
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
configuration. The ports support the energy-efficient features as per IEEE 802.3az
USB
USB 2.0 Hi-Speed host port for connecting USB printers (USB print server), serial devices (COM-port
servers), USB data media (FAT file system)
ISDN-S0
ISDN-S
0
bus
Serial Interface
Serial configuration interface / COM port (8-pin Mini-DIN):
9,600 - 115,000 baud, suitable for optional connection of analog / GPRS modems.
Ant 1, Ant 2
Two SMA connectors for the supplied dipole rod antennas (LTE, UMTS, Edge), compatible LANCOM
AirLancer Extender antennas for 4G or 3G, or from other manufacturers. Please respect the restrictions
which apply in your country when setting up an antenna system (in particular the antenna gain and
transmission power).
GPS
SMA jack for connecting an optionally available GPS antenna
WAN protocols
Ethernet
PPPoE, 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 (autoconfiguration, 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 radio equipment is in compliance with Directive 2014/53/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
Quick Reference Guide (DE/EN), Installation Guide (DE/EN)
Cable
Ethernet cable, 3 m (kiwi-colored connectors), ISDN cable, 3 m (light-blue connectors)
Antennas
Two LTE- / 4G antennas for LTE / UMTS / EDGE
Power adapter
External power supply adapter (230V), NEST 12 V / 1.5 A DC/S, barrel connector 2.1 / 5.5 mm
bayonet, LANCOM item no. 111301 (EU, 230 V); LANCOM item no. 111302 (UK, 230 V)
a
Power
Off
Device switched off
Green, permanently*
Device operational, resp. device paired / claimed
and LANCOM Management Cloud (LMC)
accessible
Green / orange, blinking
Configuration password not set. Without a
configuration password, the configuration 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
g
VPN
Off
No VPN connection active
Green, permanently
VPN connection active
Green, blinking
Establishing VPN connections
f
ETH
Off
No networking device attached
Green, permanently
Connection to network device operational, no
data traffic
Green, flickering
Data transmission
e
ISDN
Off
interface deactivated
Green, permanently
D-channel active
Orange, permanently
B-channel active
Green, flickering
ISDN data transmission
Red, flickering
ISDN transmission error
Red / orange, blinking
ISDN hardware error
USB interface
You can use the USB
interface to connect a
USB printer or a USB
flash drive for device
configuration.
LTE- / 4G antennas or
optional: GPS antenna
Screw the two supplied
cellular antennas onto
the connectors Ant 1 and
Ant 2.
Alternatively screw the
freely available GPS
antenna onto the
connector GPS.
(see included voucher).
SIM card
Slide the SIM card into the slot
using the marker to ensure that
the card is the right way round.
Ensure that the SIM card clicks
into place on insertion.
To remove the card from the
device, press the card slightly
into the device. Let go to release
the SIM card from the slot.
d
Signal
Off
No cellular reception
Orange, blinking
Low signal strength,
field strength less than -87 dB
Orange, permanently
Medium signal strength,
field strength -86 – -71 dB
Green, permanently
Good signal strength, greater than or equal to
-70 dB
c
4G
Off
Cellular interface disabled
Red / orange, blinking
Uploading module firmware
Red / green, blinking
SIM card error (PIN)
Orange, blinking
Logging on to cellular network
Orange, permanently
Logon to cellular network successful
Green, permanently
Connection to cellular network active
Green, flickering
Cellular data transmission
Red, permanently
Hardware error / module unavailable
Quick Reference Guide
LANCOM 1781-4G
Antennas are only to be attached or changed when the device is switched off. Mounting or
demounting antennas while the device switched on may cause the destruction of the 4G
module!
The SIM may only be inserted or removed with the device switched off.
Inserting or removing the SIM card while the device is switched on could
destroy the 4G module!
5
5
a
b
c
d
e
f
g
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.
b
a
c
e
b
g
f
d
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 firmware (LCOS) is available on the device‘s WEBconfig
interface under “Extras > License information“. If the respective license demands, the source files for the corresponding software
components will be made available on a download server upon request.
*) The additional power LED statuses are displayed in 5-seconds rotation
if the device is configured to be managed by the LANCOM Management
Cloud.
Cloud-ready
