ETAS ES523.1, User Manual, Page: 20 / 67

ETAS Functional Description
ES523.1 - User Guide 20
5 Functional Description
This chapter describes the block diagram, power supply, Ethernet switch, mod -
ule network, time synchronization, ECU interfaces and the firmware update.
5.1 Block Diagram
Fig. 5 - 1 Block Diagram
To fulfill the operation demands in the vehicle, the interfaces of the ES523.1 are
each routed to an Lemo socket.
5.2 Power Supply (7-29V DC)
The power supply interface (7-29V DC) is routed to a 2-pin connector (Lemo
socket) on the back panel of the module. Power is supplied to the module via
an external power supply or vehicle battery.
When the ES523.1 is connected to the operating voltage and there is an Ether -
net connection at HOST, the module boots. If there is no Ethernet connection,
the module changes to “Standby.”
5.3 Ethernet Switch
The integrated Ethernet switch is used for the connection of the ES523.1 mod -
ule and other measurement or interface modules to a user PC. Data from the
connected modules is acquired synchronously (ETAS device synchronization,
see chapter 5.5 on
page 23). The Ethernet switch can be cascaded with other
network modules so that you can create larger blocks of measurement and
interface modules.
NOTE
The ES523.1 must be physically disconnected from all supply voltages so the
module is not supplied with power.
ES523
Time Synchronization Unit
LED
7..29V DC
SYNC
OUT SYNC
IN
CPU Flash RAM
ETH1
10/100 MBit
HOST
ETH2
10/100 MBit
ETH3
10/100 MBit
CAN1
CAN3
CAN2
CAN4
Et
he
rn
et
S
w
itc
h
Ethernet
Phy
Ethernet
Phy
Ethernet
Phy
Ethernet
Phy
Traffic
Detection
HOST
ETH1
ETH2
ETH3
CAN1
CAN2
CAN FD
Transceiver
CAN / CAN FD
Controller
CAN FD
Transceiver
CAN / CAN FD
Controller
CAN FD
Transceiver
CAN / CAN FD
Controller
CAN FD
Transceiver
CAN / CAN FD
Controller
Power
Supply
WakeUp /
Standby
Controller