-130-
10.2 Signal Definition of the Measurement Ports
2.3 Measurement Port
○
RS-232C(V.24) port
RS-232C measurement/test port. The standard pin assignment is V.24 specification.
The input/output specifications of each signal can be switched by setting of DTE/DCE at the monitor function
(MONITOR), simulation function, and BERT function.
*1: CI signals cannot be output from this unit.
*2: Pins not mentioned are not connected.
*3: Input direction to this analyzer is I, output direction from this analyzer is O.
ڦ
Signal definition of the RS-232C
○
RS-422/485 port
RS-422/485 measurement/test port.
ڦ
Signal definition of RS-422/485 port
*1: “I” is an input to the analyzer. “O” is an output from the analyzer.
Name
RS-232C(V.24)
Input/Output
(*3)
Line state
LED
DSUB25 Pin
(*2)
MONITOR
DTE
DCE
Shield grand
FG
1
-
-
-
Signal grand
SG
7
-
-
-
Transmitted data
SD
2
I
O
I
SD
Received data
RD
3
I
I
O
RD
Request to send
RTS
4
I
O
I
RS
Clear to send
CTS
5
I
I
O
CS
Data terminal ready
DTR
20
I
O
I
ER
Data set ready
DSR
6
I
I
O
DR
Data carrier detect
DCD
8
I
I
O
CD
Call indicator
CI
(*1)
22
I
I
-
CI
Send timing DTE
ST1
24
I
O
I
ST1
Send timing DCE
ST2
15
I
I
O
ST2
Receive timing DCE
RT
17
I
I
O
RT
Signal
Terminal
Input/Output
(*1)
Line state
LED
MONITOR
DTE
DCE
Transmission data
TXD-
I
O
I
SD
TXD+
I
O
I
Receiving data
RXD-
I
I
O
RD
RXD+
I
I
O
Signal Ground
GND
-
-
-
