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2.3.9
Call processing serial connectors
The
Call Proc Serial I/O A
to
D
connectors located on the rear panel of the
MD8470A are 9-pin D-Sub (female) connectors to execute communication
tests between the MD8470A and UE. The MD8470A comes with Slots A
to D for attaching a signalling unit, and each A to D connector corre-
sponds to Slots A to D of the MD8470A, respectively.
Refer to the Operation Manual of the simulation kit for detailed use of the
Call Proc Serial I/O A
to
D
connectors.
The rear panel of the MD8470A has the
RS-232C
connector, which is an
identical 9-pin D-Sub connector (female). Check the connector labels
when connecting and be careful so as not to connect to the wrong connec-
tion point.
Table 2.3.9-1 Call Proc Serial I/O connector and signal assignment
Pin
Signal Name
Function
1
CF(DCD)
Carrier detection (input to the MD8470A)
2
BB(RXD)
Reception data (input to the MD8470A)
3
BA(TXD)
Transmission data (output from the MD8470A)
4
CD(DTR)
Data terminal ready (output from the MD8470A)
5
AB(GND)
Grounding
6
CC(DSR)
Data set ready (input to the MD8470A)
7
CA(RTS)
Signal request (output from the MD8470A)
8
CB(CTR)
Transmit enabled (input to the MD8470A)
9
CE(R)
Ring indicator (input to the MD8470A)
PC
When connecting to Call Proc Serial I/O connector A
Name plate
Fig. 2.3.9-1 Example of connection to PC
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