Table of Contents
Advertisement
2.1 Null Modem Cable
Since both Sandpoint 3 and the PC or workstation it communicates with are computers and therefore are
DTEs (Data Terminal Equipments), a special serial cable known as a null-modem cable is required. These
cables are readily available from computer supply stores. In addition, it is simple to make, as shown in
Figure 3.
5
4
3
2
1
Once the cable is available or constructed, attach one end to the Sandpoint COM1 port and the other to the
PC/Workstation. Either end will work with either computer.
6
9
8
7
6
DB9 Female
Back View
Figure 3. Null Modem Diagram
5
9
4
8
3
7
2
6
1
DB9 Female
Back View
MOTOROLA
Advertisement
Table of Contents
