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Page 12 5 Mounting and Conguration of the PTP card
5 Mounting and Configuration of the PTP card
5.1 Configuring the 9 pin connector
By default only the signals needed for a serial RS232
port are mapped to the pins of the connector. Whenever
one of the additional signals shall be used, the signal
must be mapped to a pin by putting the appropriate
lever of the DIL switch in the ON position. The table
below shows the pin assignments for the connector and
the DIL switch lever assigned to each of the signals.
Care must be taken when mapping a signal to Pin 1,
Pin 4 or Pin 7 of the connector, because one of two
dierent signals can be mapped to these Pins. Only
one switch may be put in the ON position in this case:
Pin 1: DIL 1 or DIL 8 ON
Pin 4: DIL 5 or DIL 10 ON
Pin 7: DIL 3 or DIL 7 ON
Those signals which do not have a lever of the DIL switch assigned are always available at the connector:
D-SUB Pin Signal Signal level DIL-switch
1 VCC out +5V 1
1 PPO0 out RS232 8
2 RxD in (res.) RS232 -
3 TxD out (res.) RS232 -
4 PPO1 out TTL 5
4 10MHz out TTL 10
5 GND - -
6 CAP0 in TTL 2
7 CAP1 in TTL 3
7 IRIG DC out TTL into 50 Ohm 7
8 PPO0 out TTL 4
9 PPO2 out TTL 9
5.2 Installing PTP270PEX in your computer
Every PCI Express board is a plug&play board. After power-up, the computer's BIOS assigns resources like I/O
ports and interrupt numbers to the board, the user does not need to take care of the assignments. The programs
shipped with the board retrieve the settings from the BIOS.
The computer has to be turned o and its case must be opened. The PTP270PEX can be installed in any
PCI Express slot not used yet. The rear plane must be removed before the board can be plugged in carefully. The
computers case should be closed again and after the computer has been restarted, the monitor software can be
run in order to check the conguration of the PTP card.
12 Date: 22nd November 2012 PTP270PEX