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5.2 Installation
5.2.1 Wiring the Alphadesk PC to the DCU distance less than 3 m.
The Alphadesk central control PC is connected to the RS232 connector (see Figure 5.1)
of the DCU with an RS232 cable. Normally this cable is equipped with two 9-pole
connectors. Some PCs however are equipped with a 25-pole RS232 connection.
The cable layout for both connections is given in Figure 5.2.
1
Figure 5.1 Bottom view of the DCU
RS232 connector for connection with Alphadesk central control PC
Mains inlet, 110...230 Vac/50..60 Hz, 1.6A
Fuse, T3.15 Ah/250 Vac
On/Off switch
DCU
9-pole D
connector
female
Pin
Description
1
DCD
2
RxD
3
TxD
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
Not connected
Figure 5.2 RS232 9-pole female to 9- or 25-pole female
Note
The maximum length of the RS232 cable is 3 metres.
Alphadesk central control PC
9-pole D
connector
female
Pin
1
2
3
4
5
6
7
8
DECT6000
BS 8-15
BS 0-7
2
3
4
25-pole D
or
connector
female
Description
Pin
DCD
8
RxD
3
TxD
2
DTR
20
GND
7
DSR
6
RTS
4
CTS
5
Installation Instructions
en
CHAPTER 5
11
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