INS_FDC24NL[SFP]_REV–
12/29/11
PAGE 8
RS422 Bus With Standard Fiber Units
Multiple Units With The Same Address
FVT10D2I1C4E
Any ComNet fiber unit w/
an RS422 data channel
FDC24NL
Address 1
FDC24NL
Address 1
FDC24NLSFP
Address 1
FDC24NL
Address 2
FDC24NL
Address 3
LEFT
LEFT
24 Contacts IN
24 Contacts IN
24 Contacts IN
24 Contacts IN
24 Contacts IN
24 Contacts IN
24 Contacts IN
24 Contacts IN
24 Contacts IN
A
A
A
A
A
B
B
B
B
B
B
B
24 Contacts OUT
From Address 1 – Right
24 Contacts OUT
From Address 1 – Right
24 Contacts OUT
From Address 1 – Right
24 Contacts OUT
From Address 2 – Right
24 Contacts OUT
From Address 3 – Right
24 Contacts OUT
From Address 1 – Left
24 Contacts OUT
From Address 1 – Left
Contact inputs on the left side will be logic OR’ed together as both units have the same address. (e.g. closing input 1 on either unit will cause relay output 1 to close on the unit(s) with
address 1 on the right side of the system.)
In addition, the relay outputs on both units on the left side will close when the corresponding input is closed on the unit(s) with address 1 on the right side of the system.
24 Contacts OUT
From Address 2 – Left
24 Contacts OUT
From Address 3 – Left
FVR10D2I1C4E
Any ComNet fiber unit w/
an RS422 data channel
FDC24NL
Address 1
FDC24NLSFP
Address 1
FDC24NL
Address 2
FDC24NL
Address 3
RIGHT
RIGHT
Cat5 Straight Patch Cable
Fiber Optic Cable
INSTALLATION AND OPERATION MANUAL
FDC24NL[SFP] SERIES
TECH SUPPORT: 1.888.678.9427
FIGURE 12 – TYPICAL APPLICATIONS (CONT’D)
