BSS Audio MC-1 Manuel D’Utilisation

8

The Link Pass-Through feature allows the media converter to monitor both the

fiber and copper RX (receive) ports for loss of signal. Refer to the illustration

below. For example, in the event of a loss of an RX signal (1), the media

converter will automatically disable the fiber TX (transmit) signal (2), thus,

“passing through” the link loss (3). The far-end device is automatically notified

of the link loss (4), which prevents the loss of valuable data unknowingly

transmitted over an invalid link.  

Transparent Link Pass-Through operates similar to Link Pass-Through with one

exception: the fiber link between the converters remains active. A signal is

passed through to the remote converter, causing it to shutdown the copper

link, notifying the end device of the link failure. 

Auto-Negotiation enables automatic configuration to achieve the best possible

mode of operation over a link between devices. A device with this feature

enabled will broadcast its speed (10Mbs, 100Mbs, etc.) and duplex (half/full)

capabilities to another device with this feature, then negotiate the best mode

of operation between them—no user intervention required. 

Fiber Auto-Negotiation allows the fiber interface to detect and then advertise

the support abilities of the remote device. It is supported only when the fiber

is connected to a device with a negotiating port.

This diagnostic feature enables the media converter to loop back the signal

from the RX port to the TX port for testing and troubleshooting purposes. Test

signals from a bit-error test unit can then be inserted into either the copper or

fiber link to test a particular segment. 
This type of diagnostic test can only be performed from the local to the
remote device with loop back enabled on the remote device. 

Note: SNMP is not supported in the MC-1. 

4

1

Media

Converter A

Media

Converter  B

Near-End

Device

Far-End

Device

original fault

on the copper link

media converter B

disables the copper link

media converter A

disables the fiber TX link

3

2

media converter B

loses the fiber RX link

9

The physical characteristics must meet or exceed IEEE 802.3™ specifications. 

Bit Error Rate: 

<10-9

Single mode fiber (recommended):

9 µm 

Multimode fiber (recommended):

62.5/125 µm 

Multimode fiber (optional):  

100/140, 85/140, 50/125 µm 

BSS Audio MC-1                                      1310 nm single mode

Fiber-optic Transmitter Power:

min: -9.5 dBm

max: -3.0 dBm

Fiber-optic Receiver Sensitivity:

min: -20.0 dBm

max: -3.0 dBm

Link Budget:

10.5 dB

BSS Audio 800-931-2357  8760 South Sandy Parkway, Sandy, Utah 84070                                 www.bssaudio.com 800-931-2357

• Gauge = 24 to 22 AWG; Attenuation = 22.0 dB /100m @ 100 MHz

• Straight-through OR crossover cable may be used.

• Shielded twisted-pair (STP) OR unshielded twisted-pair (UTP) may be used

• All pin pairs (1&2, 3&6, 4&5, 7&8) are active in a gigabit network.

• Use only dedicated wire pairs for the active pins; e.g., blue/white & white/blue,

orange/white & white/orange, etc.

• Do not use flat or silver satin wire.