SBC PCD2.M5 Series - Page 42

Hardware Manual for the PCD2.M5 Series│Document 26/856; Version EN 12│2014-07-24
Saia-Burgess Controls AG
Connections to PCD2.M5_
PCD2.M5_ Classic CPUs and expansion housings
3-29
3
Terminal block for power supply, watchdog, Port#0, PGU
Pin signal Explanation
29
RxD/
TxD-N
D
A
(green)
Port#0 also as PGU;RS-485
upto115.2kBd;usableasfree
user interface
28
RxD/
TxD-P
/D B(red)
27 -
26 WD
Watchdog
25 WD
24 -
Voltage supply
23 -
22 +
21 +
20 +
RS-485 terminator switch
Switch
position
Designation Explanation
up O without termination resistors
down C with termination resistors
Ethernet (PCD2.M5540 only)
FortheseEthernetconnections,anew10/100Mbitsswitch
is used, which switches automatically between the two speeds.
Both sockets can be used independently of each other.
TheRJ-45shieldisAC-coupledandsofullyinsulated.ETH1
and
ETH2 are independently AC-coupled.
Sockets:
2xRJ-45positionedvertically,metalhousing,2LEDs
orange: Link and activity
green: Speed 10 or 100 Mbits
USB programming port
USB 1.1 slave device