Yaskawa BACnet MS/TP - Manual (Page 10)

4 Option Components
u SI-B3 BACnet Option
Underside
A
C
1234
1
2
3
4
B
H
D
E
G
I
F
ON
A – Ground terminal and
installation hole
<1>
B – Terminal block TB1
C – Terminating resistor
switch S1
D – Connector (CN5)
E – Installation hole
F – LED (NS) <2>
G – LED (MS) <2>
H – LED (RX) <2>
I – LED (TX) <2>
Figure 1 Option (Top View)
<1> Connect the ground wire provided in the option shipping package during installation.
<2> Refer to Option LED Display on page 11 for details on the LEDs.
u Terminal Block TB1
Refer to Table 2 for details on removable terminal block TB1 terminal descriptions.
Table 2 Option Terminal Descriptions
Terminal Pin Signal Description
1 IG5 Isolated supply ground reference
2 + RX/TX (+) signal
3 - RX/TX (-) signal
4 SHLD Shield Ground
4 Option Components
10 YASKAWA TOEP YEACOM 08A A1000 Option BACnet MS/TP SI-B3 Installation & Technical Manual