Installation Manual

INS_FDX72SHR_REV–
02/29/12
PAGE 4
FIGURE 4 – RING LENGTH SWITCH POSITIONS
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INSTALLATION AND OPERATION MANUAL FDX72(M,S)1SHR
Switch
Upper bank of
switches located
on front panel.
For most applications, the Ring Length Switch can be left at
default setting. For high data rate applications (>250Kbps) ring
length should be set to minimize turn-around time.
FIGURE 5 – DATA CONNECTIONS
RS232
Customer
Equipment FDX72SHR
Customer
EquipmentFDX72SHR
RS422
Bi-phase or
Manchester
DIN(+)
DIN(–)
DOUT(+)
DOUT(–)
Data Out (+)
Data Out (–)
2-Wire
RS485,
Sensornet
DIN(+)
DIN(–)
DIN(+)
DIN(–)
Data (A)
Data (B)
Data Transmit
Data Receive
Signal Ground
DIN(–)
DOUT(–)
GND
DOUT(–)
DIN(–)
GND
4-Wire
RS485
DIN(+)
DIN(–)
DOUT(+)
DOUT(–)
DOUT(+)
DOUT(–)
DIN(+)
DIN(–)
Data Out (A)
Data Out (B)
Data In (A)
Data In (B)
DIN(+)
DIN(–)
DOUT(+)
DOUT(–)
DOUT(+)
DOUT(–)
DIN(+)
DIN(–)
Data Out (+)
Data Out (–)
Data In (+)
Data In (–)
Data In (+)
Data In (–)
Data (A)
Data (B)
Data Receive
Data Transmit
Signal Ground
Data In (A)
Data In (B)
Data Out (A)
Data Out (B)
Data In (+)
Data In (–)
Data Out (+)
Data Out (–)
Switch Position
Resulting Max Ring Length
1 2 3
ON ON ON 100 km (default)
ON ON OFF 75 km
ON OFF ON 50 km
ON OFF OFF 20 km
OFF ON ON 10 km
OFF ON OFF 5 km
OFF OFF ON 2 km
OFF OFF OFF 1 km
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