Specifications
Appendix A
48
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.
Link 1 Fiber link On Fiber CH1 link is ok.
Off No link or the link is faulty.
Blinking Receiving data on fiber CH1.
Link 2 Fiber link On Fiber CH2 link is ok.
Off No link or the link is faulty.
Blinking Receiving data on the fiber CH2.
TEST Test active On OAM Loopback test is active
Off Normal, no test active
(RJ-45 LEDs)
100 mode display On Amber UTP side is operating in 1000Mbps mode.
On Green UTP side is operating in 100Mbps mode.
Off UTP side is operating in 10Mbps mode
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 provides granularity choices of 64k, 1M, or 100M to support a range
from 64kbps to 900Mbps. The 1000EAS/X has 4 ports, 2 electrical plus 2 optical. In the user interface we define
'Ingress' as traffic flowing into a port and 'Egress' as traffic flowing out of a port. Each port has individual Ingress
and Egress settings. Inherent in the design of the Marvell switch chip, Ingress rate limiting does not use 802.3X
flow control, which results in packets dropped when the rate limit is reached. Flow control allows reasonable
bandwidth control of layer 7 applications (FTP, WEB, etc.) without dropping packets. Egress rate limit, however,
uses flow control, when enabled. Therefore the recommended method for setting up rate limiting is by using only
Egress rate limiting and setting it per port. Ingress rate limiting can also be set as long as it is understood that
packets are dropped once the limit is reached. Also, if flow control (802.3X) is disabled, then egress limiting will
also drop packets when rate limit is reached.
The example below shows the 1000EAS/X.
1. Only use the Egress setting and leave Ingress set to unlimited.
2. For two way bandwidth control, set Egress 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
3. Fault condition sent
via OAM to far end
1. fiber
broken
MC
MC
remote
local
fiber
2. Fault condition sent
via dying gasp
3. FEF LED lit
MC
MC
1. MC powered OFF
Local
FRM220-
1000EAS/X
Remote
FRM220-
1000EAS/X
Fibe
r
UTP UTP
E ress
E
g
ress
g