Modular Jack Pin Out; Db9F Pin Out - Inter-Tel AXXESS Manual

3. SYSTEM SERIAL PORT PIN OUT
A. MODULAR JACK PIN OUT
3.1 Inter-Tel system RS232 serial ports (except for PCDPM) use a custom pin out as shown
in the diagram below. See this diagram for all RS232 connections to the serial port.
*The serial port on the CPU-112 card (not supported by system version 5.0 or later),
does not have the Input Flow Control pin connected, but it can use the Output Flow Con-
trol pin. The two serial ports on a MEM card have both flow control pins connected;
therefore, they can perform hardware flow control as the other Inter-Tel ports do.
B. DB9F PIN OUT
3.2 Inter-Tel PCDPMs use the de facto industry standard DB9F pinout configured as a DCE
device. See the following diagram for all PCDPM connections.
Input Flow Control (DTR)
Input Flow Control (RTS)
Output Flow Control
System Serial Port Pin Out
INTER-TEL
SIGNAL TYPE
No Connect
1
No Connect
2
Ground
3
Data
4
Flow Control
5
Data
6
Port Ready
7
Flow Control
8
PCDPM DB9F Connector
RS232 Equivalent
Description
Pin Name
Always True
Output Data
Input Data
Ground
Always True
Not Supported
® ®
AXXESS MANUAL VERSION 11.0 – May 2008
SIGNAL DIRECTION
Input To System
Input To System*
Output From System
Output From System (always asserted)
Output From System
5 4 3 2 1
9 8 7 6
Direction (DCE)
DCD Output from System
RD Output from System
TD Input to System
DTR Input to System
GND
DSR Output from System
RTS Input to System
CTS Output from System
RI No Connection
Appendix B — RS232
DB9F Pin No.
1
2
3
4
5
6
7
8
9
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