Specifications

Appendix A
43
Local Rx fiber
Broken
Remote Power
Failure
LED Status Indicators
LED Function State Status
PWR Power indicator On Converter has power.
Off Converter has no power or has been disabled.
Blinking Card is being upgraded.
FEF Far End Fault On Indicates some fault condition from the unit connected on the remote fiber
Off Normal no fault condition
FX Link Fiber link On The fiber link is ok.
Off No link or the link is faulty.
Blinking Receiving data on the fiber.
100 mode display On UTP side is operating in 100Mbps mode.
Off UTP side is operating in 10Mbps mode
Full mode display On UTP side full duplex mode (20/200mbps).
Off UTP side half-duplex mode (10/100mbps).
Blinking Collision detected while in half-duplex mode
TX Link Ethernet link On The UTP link is ok.
Off No link or the link is faulty.
Blinking Receiving data on Ethernet.
Bandwidth Control
The bandwidth control in this converter is settable in granules of 32Kbps or 512Kbps. In the user interface we
define 'Ingress' as traffic flowing from electrical to optical and 'Egress' as flowing from optical to electrical. The
actual mechanism uses egress with pause flow control at both ports of the switch. Flow control allows reasonable
bandwidth control of layer 7 applications (FTP, WEB, etc.) without dropping packets.
The settings for bandwidth control should be refined to follow the below setting suggestions.
1. Only use the Ingress setting and leave Egress set to unlimited.
2. For two way bandwidth control, set Ingress rate at CO side and at Remote side individually to attain 2-way
bandwidth control.
fiber
remote local
4. FEF Led Lit 2. FX Link Down
1. fiber
broken
MC
MC
3. Fault condition sent
via OAM to far end
remote local
fiber
2. Fault condition sent
via dying gasp
3. FEF LED lit
MC
MC
1. MC powered OFF
Local
FRM220-
10/100i
Remote
FRM220 or
FMC-10/100i
Fibe
r
UTP UTP
In
g
ress
In
g
ress