Cinterion
®
LTE Terminals Hardware Interface Description
3.7 Ethernet Interface
47
ELSxT_HID_v04
2018-09-04
Confidential / Preliminary
Page 40 of 102
3.7
Ethernet Interface
The Ethernet interface is available on all LTE Terminals. .
Figure 17:
8-pole RJ-45 Ethernet connector (female)
The Ethernet interface can be used as transparent data interface, for downloading new LTE
Terminal firmware releases - module firmware as well as Ethernet sub-system software, and
also to access the implemented LTE module via AT command interface.
The Ethernet interface supports Power over Ethernet (i.e., PoE+ (Class 0) according to IEEE
802.3at, and backward compatible to IEEE 802.3af.). This means that if connected to a PoE
enabled router or PoE injector, the LTE Terminal does no longer need a separate power supply
unit such as the mains adapter mentioned in
. The mains adapter and PoE may be
connected in parallel, but one of the supplies suffices to operate the LTE Terminal (the other
may be used a power supply backup).
Note:
The maximum cable length between LTE Terminal and the nearest network socket
should be 10m, and it is recommended that the cable should be shielded.
Using the Ethernet interface it is also possible to maintain a database containing possible APNs
for the LTE Terminal. Please refer to
Appendix B: Ethernet Setup and Usage
for details on how
to setup and use LTE Terminals with Ethernet interface. For further characteristics of Ethernet
interface refer to
A green LED near to the RJ-45 Ethernet connector shows the Link/Activity status of the Ether-
net interface (refer to
).
Table 16:
Female 8-pole RJ-45 Ethernet connector
Pin
Signal name
Use
Comment
1
TX+
Tr
All lines available for
Power over Ethernet
(42V – 57V)
2
TX-
Transmit -
3
RX+
R
4
n/c
Reserved
5
n/c
Reserved
6
RX-
R
7
n/c
Reserved
8
n/c
Reserved
1 2 3 4 5 6 7 8
Green LED (Link/Activity)
