Alicat M Series - Figure 2. Mini-DIN to DB-9 Connection for RS-232 Signals; Figure 3. Typical Multiple Device (Addressable) Wiring Confi Guration

8
7
4
6
21
DB-9 Serial Port
5
5----------Ground--------------------------------------Ground----------8
3----------Transmit------------------------------------Receive---------3
2----------Receive-------------------------------------Transmit--------5
8 Pin Mini-DIN Port
8
1 2 3 4 5
6 7
8 9
3
4
5
6
7
8
2
Figure 2. Mini-DIN to DB-9 Connection for RS-232 Signals
5
3
2
Purple
Red
Yellow
Purple
Red
Yellow
5
4
3
2
1
9
8
7
6
Unit C
Unit B
Unit A
Female Serial Cable Front
Purple (Ground)
Red
Yellow
Figure 3. Typical Multiple Device (Addressable) Wiring Confi guration
Note: The easiest way to connect multiple devices is with a BB-9 Multi-Drop Box (see page 39).
(Note: BB-9 is not compatible with RS-485.)