Diplomat jr Model jrN-ASV User Guide Issue No. 2 (03/01)
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Asynchronous Port A
The table below shows the pin connections to this port connector. This
port is normally connected to a terminal or other asynchronous peripheral
and is a female 25 pin D-type configured as a serial asynchronous DCE.
PIN NO.
RS232 SIGNAL
1
G
Protective Ground connects to chassis and power supply ground
2
TX
Asynchronous Transmitted Data going into the Diplomat
3
RX
Asynchronous Received Data from the Diplomat
4
RTS Connected to pin 5
5
CTS Connected to pin 4
6
DSR Data Set Ready held high if Diplomat ready to receive
7
SG
Common signal return is connected to power supply ground
8
DCD Data Carrier Detect held high if Diplomat ready to receive
12
O/I
TTL level is inversion of pin 6 and 8
19
RDY see links L1 and L2
20
DTR see links L1 and L2
The Diplomat jrN Model V is supplied with an RS422 interface. In this
case the female 25 pin D-Type is configured as follows:
PIN NO.
RS422 SIGNAL
1 Shield
Connects to chassis and power supply ground
2
T(A)
Asynchronous Transmitted Data going into the Diplomat
3
C(A)
Control Signal going into Diplomat
4
R(A)
Received Data from Diplomat
5
I(A)
Indication Signal from Diplomat
8
SG
Signal Ground
14
T(B)
Transmitted Data going into Diplomat
15
C(B)
Control Signal going into Diplomat
16
R(B)
Received Data from Diplomat
17
I(B)
Indication Signal from Diplomat
The Control Signal is used by the Diplomat jrNV in place of the DTR
signal used by the jrN. The Indication Signal is generated by the Diplomat
jrNV in place of the DSR and DCD signals generated by the Diplomat
jrN.
Technical Specification
