RAD Data comm IPmux-16 Null Cable Pinout Connections, DB-9 Female Signal Name Pin No

IPmux-16Installation and Operation ManualChapter 2 Installation

Table 2-1. Null Cable Pinout Connections

DB-9 Female	Signal	Name
Pin No.
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
8	CTS	Clear To Send
9	RI	Ring Indicator

On both DB9 connectors, DCD (pin 1), DTR (pin 4) and DSR (6) are connected together.

RTS (pin 7) is shorted together with CTS (pin 8). Refer to Figure 2-1.

CBL-DB-9/DB9/NULL

DB-9 (Female) 1

2

3

4

5

6

7

8

9

DB-9 (Female) 1

2

3

4

5

6

7

8

9

Figure 2-1. Null Cable (CBL-DB-9/DB-9/NULL) Pin Shorts

Equipment Needed 2-3