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saia-pcd.com
0V
L
N
RS-485
Cabinet components
4
Consumption data
acquisition
3
Dedicated
room controller
2
HMI Visualization
and operating
1
Automation
stations
5
Cabinet
components
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,
as well as the electrically isolated power supply with either 230 VAC or 24 VAC/DC, the PCD7.T16x termination boxes are suitable
for use in rugged 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 top-hat 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 termination resistance of 120 Ω
`
LED operating indicator
Dimensions
Connection diagram
PCD7.T161
PCD7.T162
Connection example
RS485
3N
4N
1L
2L
+5V
0V
ȍ
/D
D
L
N
230 VAC
RS485
3N
4N
1L
2L
+5V
0V
ȍ
/D
D
L/0VDC
N/24VDC
24 VAC/DC
24VAC
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
Line termination resistance
Fixed 120 Ω
Fixed 120 Ω
Display
LED for 230 VAC
LED for 24 V
Lead-sealing cap as an accessory, see section 4.3.6 (ALD1)
