4 pin assignment of the serial interface – VEGA MoRoS Modem - ISDN 1.3 User Manual
Page 17

MoRoS Modem - ISDN 1.3
Connections
17
Figure 4: Connections on the bottom of the device
Terminal Description
Description
17
RS 485B
Reserved for future applications
18
RS 485A
Reserved for future applications
19
GND
Ground
20
Input 2
Input 2
21
Input 1
Input 1
22
GND
Ground
23
Reset
Reset input
24
GND
Ground
25
10 ... 60VDC
Power supply 10 V – 60 V DC
26
GND
Ground
Table 10: Description of the connections on the bottom of the device
6.4
Pin Assignment of the Serial Interface
Figure 5: 9-pin sub-D jack at the device
Pin
Signal
Description
1
DCD
Data Carrier Detect
2
RXD
Receive Data
3
TXD
Transmit Data
4
DTR
Data Terminal Ready
5
GND
Ground
6
DSR
Data set ready
7
RTS
Request to send