Teledyne 703E User Manual
TELEDYNE API
Operating The M703E over the Serial I/O Ports
Operating The M703E over the Serial I/O Ports
M703E Calibrator Operator’s Manual
7.1.2. COMM PORT DEFAULT SETTINGS AND CONNECTOR PIN
ASSIGNMENTS
Received from the factory, the calibrator is set up to emulate an RS-232 DCE device.
RS-232 (COM1): RS-232 (fixed), DB-9 male connector.
o
Baud rate: 19200 bits per second (baud).
o
Data Bits: 8 data bits with 1 stop bit.
o
Parity: None.
COM2: RS-232 (configurable to RS 485), DB-9 female connector.
o
Baud rate: 115000 bits per second (baud).
o
Data Bits: 8 data bits with 1 stop bit.
o
Parity: None.
Male DB-9 (RS-232)
(As seen from outside analyzer)
(DTE mode)
(DCE mode)
1
2 3
4
5
6
7 8
9
RXD
GND
TXD
CTS
RTS
1
2 3
4
5
6
7 8
9
TXD
GND
RXD
RTS
CTS
Female DB-9 (COM2)
(As seen from outside analyzer)
(DTE mode)
1
2
3
4
5
6
7
8
9
RXD
GND
TXD
CTS
RTS
Figure 7-1:
Default Pin Assignments for Back Panel COMM Port connectors (RS-232 DCE & DTE)
The signals from these two connectors are routed from the motherboard via a wiring harness to two 10-pin
connectors on the CPU card, CN3 (COM1) and CN4 (COM2).
connectors on the CPU card, CN3 (COM1) and CN4 (COM2).
CN3 & CN4
(Located on CPU card)
(As seen from inside analyzer)
TXD
GND
2
4
6
8
10
1
3
5
7
9
RXD
RTS
CTS
Figure 7-2:
Default Pin Assignments for CPU COM Port connector (RS-232).
88
05744 Rev B