153
saia-pcd.com
0V
L
N
RS-485
Switch cabinet components
5
Switch cabinet
components
4
Consumer
data acquisition
3
Dedicated
room controllers
2
Operation
and monitoring
1
Automation
stations
5.3
SBC RS-485 bus termination box PCD7.T16x
The PCD7.T16x termination boxes are used for RS-485 network termination. Each RS-485 network segment must be terminated
at the end of the network. The PCD7.T16x termination boxes ensure that the RS-485 signals are set at the correct signal level
and the integrated 120 Ohm resistor prevents signal reflection in the RS-485 cable. With their robust and compact construction
and electrically isolated power supply with either 230 VAC or 24 VAC/DC, the PCD7.T16x termination boxes are suitable for use
in harsh industrial environments and in infrastructure automation. An LED indicates the presence of the supply voltage of the
PCD7.T16x termination box.
System properties
35 mm DIN rail mounting
17.5 mm wide housing
230 VAC +15% /–20% for PDC7.T161
24 VAC / DC –15% /+15% for PDC7.T162
Current consumption of 0.4 W
Electrically isolated power supply
Fixed-line terminator resistance of 120 Ω
LED operating indicator
Dimensions
Connection diagram
PCD7.T161
PCD7.T162
Connection example
RS485
3N
4N
1L
2L
+5V
0V
1103
120 Ω
/D
D
L
N
PCD7.T161
230 VAC, 50Hz
230 VAC
RS485
3N
4N
1L
2L
+5V
0V
1103
120 Ω
/D
D
L/0VDC
N/24VDC
PCD7.T162
24 VAC/DC, 50Hz
24 VAC/DC
230VAC
PCD7.T161
PCD7.T162
Comments
Power supply
230 VAC
24 VAC / DC
Housing
17.5 × 85 × 64 mm
17.5 × 85 × 64 mm
PCD7.T161 and PCD7.T162
comply with the standards for switch
cabinets
Terminating resistor
Fixed 120 Ω
Fixed 120 Ω
Display
LED for 230 VAC
LED for 24 V
Lead sealing cap as an accessory, see section 4.4.6 (ALD1)
24VAC
