PTF 3207A - Standard Inputs and Outputs

Go to Contents Precise Time and Frequency, Inc., 50L Audubon Road, Wakefield, MA 01880, USA ptf 3207A rev G
Tel: +1-781-245-9090 e-mail: info@ptfinc.com www.ptfinc.com pg. 10
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Standard Inputs and Outputs
The following specifications describe the standard inputs and outputs on the ptf 3207A.
Serial I/O Port
The standard serial data port is a bi-directional EIA standard RS-232C interface. The serial data port
baud rate can be configured via the Keypad / Display, or Standard Ethernet port.
Control and monitoring is available through an RS232 port (female 9-contact D connector) and over an
Ethernet port (RJ45 connector). The RS232 port is configured as DTE, receiving data on pin 3 and
transmitting data on pin 2. Pin 5 is chassis ground. Pins 1, 4, and 6 are used for the instrument
summary alarm relay, see table below.
DB9 Connector
Pin #
Function
Comments
1
Alarm Relay NO
Closed when in alarm
2
TX Data (RS232)
3
RX Data (RS 232)
4
Alarm Relay NC
Open when in alarm
5
Ground (RS232)
6
Alarm Relay Common
7
8
Time Print Tx(RS232)
Optional
9
Time Print Gnd(RS232)
Optional
Interface:
RS-232, ground, receive and transmit only.
Data Rates:
4800, 9600 and 19200, 38000, 57,600 bps
Data Bits:
8
Parity:
none
Stop Bits:
1
Connector:
Male 9-pin D subminiature
Pin Assignment:
1------N/C
2------Rx (RS-232)
3------Tx (RS-232)
4------N/C
5------GND
6------
7------
8------
9------
Factory settings:
57,600, 8, N, 1