STAR-BOX™
8
2
2.4.1 Pinout
The STAR-Box™ spring clamp connector pinouts are indicated in the following table.
1
RS485+
2
RS485-
3
VS
4
GND
S1
RS485
5
Shield
6
RS485+
7
RS485-
8
VS
9
GND
S2
RS485
10
Shield
11
VS
12
GND
S3
Power
13
Shield
*
The signals on S1 are repeated on S2 to facilitate network connections. In this way the network
bus can enter and exit the STAR-Box™ from different spring clamps but be physically
connected together.
NOTE
The Shield should be connected to the earth ground in one point
only.
2.4.2 Power
Supply
The various system layouts on the previous pages show the system powered by one
power supply which propagates power from one device to all the others in the
network. The power supply should be positioned in the middle of the network for the
best distribution and therfore functioning.
The total number of devices which can be connected to a single power supply
depends on the power supply voltage used and voltage drop across the various
network branches. The following example gives an indication.
Summary of Contents for STAR-Box
Page 1: ...STAR Box Installation Manual ...
Page 2: ......