4 alarm contact, 5 ethernet interface, 6 fiber optic connection – VEGA FL SWITCH SFN… User Manual

Page 9

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FL SWITCH SFN…

2732_en_D

PHOENIX CONTACT

9

Figure 4

FL SWITCH SFN…GT… power connections

for single power supply

Figure 5

FL SWITCH SFN…GT… power connections

for redundant power supply

Use power conductors between 0.2 - 2.5 mm²

(24 - 12 AWG). Torque connection screws to 0.5 - 0.6 Nm

(5 - 7 lb-in.).

6.4

Alarm Contact

The FL SWITCH SFN… switch provides contacts (R1, R2)

for remote alarms if a failure is detected.

The contact closes if one or both power supplies fail.

The contact opens if power is OK.

The maximum current, including inrush, is 100 A.

6.5

Ethernet Interface

The FL SWITCH SFN… has five Ethernet ports on the front

in RJ45 format to which only twisted-pair cables with an

impedance of 100

Ω

can be connected. The data

transmission speed is 10/100 Mbps. In addition, every port

has an auto crossing function: it is not necessary to make a

distinction between 1:1 or crossover Ethernet cables.

Figure 6

RJ45 pin assignment

6.6

Fiber Optic Connection

Two different types of fiber optic connection are available.

The fiber optic connector(s) are located on the lower front

face of the 8-port models or on the bottom face of the 5-port

models.

The ST connectors are typically individual round connectors

and use a 1/4-turn connection.

GND

US1

US2

R1

GND

R2

+

GND

US1

US2

R1

GND

R2

+

+

RJ45

8 7 6 5

4 3 2 1

n.c.

n.c.

TD-

n.c.

n.c.

TD+

RD-

RD+

10/100 Mbps

RJ45

8 7 6 5

4 3 2 1

DD-

DD+

DB-

DC-

DC+

DB+

DA-

DA+

10/100/1000 Mbps

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