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FN2013-U1
RS485 connection
[EF1], [EF2]
(HNET, XNET, HUB-4,
SNC)
1.7 Appendix
1.7.1 Applications for FN2013 and FN2014 modules
A6V12093642_en--_b
Single mode
Range:
●
Fiber type 9/125 µm
Optical budget:
●
Fiber type 9/125 µm
●
Minimum optical attenuation
(corresponds to a minimum fiber
length of 13000 ft / 3962 m)
Length of line: HNET, XNET (NIC-C)
Length of line: HUB-4, SNC
Impedance
Transmission mode
Voltage/current
1
Supervision
Terminating resistor
Cable type
1
For connections via HNET/XNET, ground fault supervision is via the NIC-C.
The diagrams below show typical applications for the FN2013 and FN2014. Class B
networks are shown; for class X, two of every device are required and must be
connected in a parallel (redundant) network. Fiber-optic cables L1 and L2 are
interchangeable. L1 does not always have to be connected to L2. All fiber-optic cables
in the diagrams below are connected with two fibers between the FN2013/14 modules.
Mixing of single-mode and multi-mode fibers is not permitted.
Connect the EF1 port on FN2013 or FN2014. An external terminating resistor is not
necessary because there is an internal 120 Ω terminating resistor installed at the EF1
port.
2023-01-23
Fiber network module FN2013 / FN2014
131000 ft/40000 m
29 dBm
3 dBm
2,000 ft/610 m at 19.2 kbit/s
20 ft/6 m in conduit
60 Ω
Half-duplex
8 V P-P, 150 mA
No ground fault supervision
No EOL required
Shielded and unshielded cables
1
Appendix
19 | 28
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