connectionS and PortS
22
PTP/IEEE 1588
(optional)
The DEWE3-OPT-IRIG/PTP function is an optional feature and provides the following synchronization input modes:
`
PTP/IEEE 1588
`
IRIG
PTP/IEEE 1588
specifications
IP mode
Multicast
Protocol
UDP / IPv4; ETH
Delay mechanism
End-to-end; peer-to-peer
IP address method
DHCP
Connector
RJ-45 Ethernet plug for 10 / 100 Mbit Ethernet connection; only for
synchronization, no data transfer possible
Programmable correction limit
10 ns to 500 ms
Tab. 8: PTP/IEEE 1588 specifications
IRIG input specifications
Supported codes
IRIG code A or B; DC
Compatibility (DC code)
DC level shift (edge detection); TTL / CMOS compatible
Low: <0.8 V
High: >2 V
Tab. 9: IRIG input specifications
RJ45
PTP Clock
Engine
PTP in
IRIG in
PPS in
GPS antenna
connector
AUX terminal
Camera trigger
Digital IO
Counter in
SYNC mode
select
DEWE3
Clock
Engine
Data
processing
Clock
divider
10 MHz
DEWE3 sync bus
DEWE3 s
ync bus
Da
ta bus
Data bus
Data bus
100 MHz VCXO
IRIG Clock
Engine
PPS
5 V
GPS Receiver
CLOCK_OUT
Input A, B, Z
DI 1 to 8
Counter
D-SUB-25
SMA
D-SUB-25
D-SUB-25
DO 1 to 4
Fig. 13: Signal routing
