Philips M3150B Installation And Service Manual page 129

Table 2-8. Requirements for an External Modem
Specification
Pin 2
Pin 3
Pin 4
Pin 5
Pin 6
Pin 7
Pin 8
Pin 9
Shell
Value
RX (Receive Data)
TX (Transmit Data)
DTR (Data Terminal Ready)
GND (Signal Ground)
DSR (Data Set Ready)
RTS (Request To Send)
CTS (Clear To Send)
RI (Ring Indicator)
Shield
Specifications
Comments
2-55
Hardware Description