MRV Communications TS700/G, TS700/155, TS800/155, TS700/100 Handle the Fibers Very Carefully

M R V C o m m u n i c a t i o n s , I n c . – I n s t a l l a t i o n M a n u a l

A simple power loss test can inform us about the condition of the fibers. This test consists in measuring (with an optical power meter) the output power at one end of the tested fiber when a fiber source is connected at the other end. If the values are in dBm, the difference between the input power and the output power gives the power attenuation of the fiber (in dB).

dBm

Optical Power Meter

Fiber Optic

Cable

F/O

TX

Peripheral

Equipment

or

Optical Source

Figure 3.1: F/O cable test.

(be performed to locate and reject badly damaged fibers. Place a light source at one end of the fiber and intermittently block it and observe the light coming out of the other end. (This procedure does not guarantee that a fiber is acceptable)

A standard 62.5∝ m fiber optic cable is characterized by an attenuation factor of about 3 to 5 dB/km. A loss value of more than 3 dB for runs up to 200m indicates that the fiber may be faulty.In case the above equipment is not available, a simple visual test may

Note

The fiberoptic cables must be installed by a qualified person.

!	HANDLE THE FIBERS VERY CAREFULLY.
	2. ForTS700/100
	Type
	For connecting the Transceiver to the peripheral equipment, 2-pair
	STP Category 5 cable is required (one pair for transmission, the other
	for reception). This cable must be a straight one when the peripheral
	has an MDI-X 100Base-TX interface and a Cross one otherwise.
	For PoE (Power over Ethernet), 2 more pairs STP Category 5 cable are
	required. (Use only for the Low Voltage version: TS100/A/FET/V3)
	Connectors
	The cable should be terminated with an RJ-45 connector at the
	Transceiver end.

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