Doc. No: Unex-QSG-21-001
13/27
A printed version of this document is an uncontrolled copy
© 2021 Unex Technology Corporation – Company Confidential
8.1.1.3.
Ethernet
Figure 7: Ethernet port
Table 6: Ethernet LED function
LED
Symbol
Color
Description
1
LINK
Green
ON = link up, OFF = link down
2
ACTIVE
Yellow
Flashing = activity detected, OFF = no activity
OBU-301(v2)/OBU-351 has one Gigabit Ethernet port which supports 10/100/1000
Mbps connection. It is suggested to use an Ethernet cable compatible with Cat5e or above
standard for best connection speed. The connector type should be RJ45 (TIA/EIA 568B).
The Ethernet port also acts as a 12W PoE (802.3af) PD (powered device) with an add-
on PoE module, POE-301. It supports both mode A and mode B PSE (power sourcing
equipment). POE-301 is not included in product package and should be ordered separately
if needed. Passive PoE is not supported.
8.1.1.4.
I/O Port
Figure 8: I/O port (J8)
The I/O port (J8) is the main interface of OBU-301(v2)/OBU-351 for console, in-vehicle
networks and peripherals. The I/O port connector is JST SM20B-CPTK-1A-TB, and the
mating cable connector is JST 20CPT-B-2A (see
).
A cable assembly with 24AWG wire should be used to connect to vehicular wire harnesses.
Link
Green
Active
Yellow
