Siemens Welding System ST PCS 7 User Manual

Industrial Ethernet

Siemens ST PCS 7 · November 2007

9

■

Glass fiber-optic cables are preferably used as the optical trans-

mission medium. The two types of cable offered are suitable for 

above-ground routing indoors or outdoors. They are available in 

fixed lengths, precut/preassembled with 2 x 2 BFOC connectors 

(FIBER OPTIC standard cable) or 2 x 2 SC-connectors 

(FO Standard Cable).
The FO Standard Cable with 2 x 2 SC connectors is required for 

optical networks in the Gigabit range, e.g. for implementing op-

tical Gigabit Ethernet rings with SCALANCE X414-3E and 

MM492-2 media modules.

■

Port type

1000BaseSX

100BaseFX

Transmission rate

1000 Mbit/s

10/100 Mbit/s

Max. cable length

750 m

3000 m

Cable type

FO Standard Cable

Fiber optic standard 

cable

FO multimode fiber 

type

50/125 µm

62.5/125 µm

Connector type

2 x 2 SC

2 x 2 BFOC (ST)

Applications

Universal cable for 

installation indoors and 

outdoors

Delivery format

Cut-to-length, 

pre-assembled with 

4 BFOC(ST) or 

4 SC connectors

Cut-to-length, 

pre-assembled with 

4 BFOC connectors 

(ST)

Cable type (stan-

dard designation)

AT-W(ZN)YY 

2x1G50/125

AT-VYY 2G62.5/125 

3.1B200 + 0.8F600 F

Fiber type

Multimode gradient 

fiber 50/125 mm

Multimode gradient 

fiber 62.5/125 mm

Damping 
• At 850 nm 

≤

 2.7 dB/km 

≤

 3.1 dB/km

• At 1300 nm

≤

 0.7 dB/km

≤

 0.8 dB/km

Modal bandwidth 
• At 850 nm 

≥

 600 MHz 

×

 km

≥

 200 MHz 

×

 km

• At 1300 nm

≥

 1200 MHz 

×

 km

≥

 600 MHz 

×

 km

Number of fibers

2

2

Cable design

Segmentable

Segmentable outer 

conductor

Core type

Hollow core, filled

Compact core

• Basic element

PVC, orange/black

PVC, gray

• Strain relief

Aramide fiber

Kevlar fiber and impreg-

nated glass fiber

• Outer sheath/color 

of cable

PVC, green

PVC, black

• Dimensions of ba-

sic element

2.9 mm diam.

(3.5 

±

 0.2) mm diam.

• Cable dimensions 4.5 x 7.4 mm

(6.3 

×

 9.8) 

±

 0.4 mm

• Cable weight

Approx. 40 kg/km

Approx. 74 kg/km

• Permissible tensile 

force

≤

 500 N 

≤

 500 N (temporary)

• Bending radius

70 mm

≥

 100 mm only on the 

flat side

• Resistance to later-

al force

300 N/cm

–

• Routing and instal-

lation temperature

-5 ... +50 ºC

-5 ... +50 ºC

• Operating temper-

ature

-25 ... +80 ºC

-20 ... +60 ºC

• Storage temper-

ature

-25 ... +80 ºC

-25 ... +70 ºC

Behavior in fire

–

Flame-retardant to 

IEC 60332-3 and 

VDE 0482-266-2-4

Silicone-free

Yes

Yes

Resistance to min-

eral oils and grease

Limited resistance

–

UL/CSA approvals

OFNG, UL1651 

FT4/IEEE1202

–

UV-resistant

Yes

–

Rodent protection

–

Yes

Gigabit length
• 1000BaseSX

750 m

–

• 1000BaseLX

2000 m

–

© Siemens AG 2007