Technical data
Panel PC 2200 built-in devices User's manual V 1.05 Translation of the original documentation
201
2.3.5.8.3.5 Terminating resistor
One terminating resistor per COM is integrated on the interface option; they are located to the left and right of the
RS422/RS485 interface. Both can be switched on or off with a switch. LED status indicators L2 and L3 (see
) indicate the state of the assigned terminating resistor.
Terminating resistor
On
The terminating resistor is switched on.
Off
The terminating resistor is switched off.
Terminating resistor
Table 213: Terminating resistor
2.3.5.8.3.6 Shielding
The shields of the cables connected to the female 10-pin connector can be connected to the screw point for cable
shields, see
"Device interfaces - Overview" on page 43
, as an alternative to the functional ground connection of
the interface cover of the system unit.
2.3.5.8.3.7 LED status indicators L2, L3
The LEDs of the interface option are located near the ETH1 interface.
LED status indicators
LED
Color
Status
Explanation
L1
NC
On
The COM D terminating resistor is switched on.
L2
Yellow
Off
The COM D terminating resistor is switched off.
On
The COM A terminating resistor is switched on.
L3
Yellow
Off
The COM A terminating resistor is switched off.
L2
L1
L3
Table 214: 5ACCIF01.FSS0-000 - LED status indicators