24 User Guide
Changing the SFP Optics

The multi-rate line card supports two replaceable small form-factor pluggable

(SFP) transceivers. This section explains how to remove and install the optics on

the card. Metrobility SFP transceivers are hot-swappable.

IMPORTANT: Use only Metrobility-supplied SFP transceivers with this

product. Installing any other optics may damage the unit and will void the

product’s warranty.

1. Disconnect the fiber optic network cables, if they are installed, from both

the receiver (RX) and transmitter (TX) of the SFP transceiver.

WARNING: Avoid looking into the laser or cable.

2. To remove the SFP optics from the multi-rate line card, simply pull open the

release mechanism (i.e., plastic tab, release wire, etc.) and slide the module

out of the slot, as shown below, left.

100 BASE
redundant twister“
MAINRESET
LK
AT
PRIMARY
LK
AT
SECONDARY
LK
AT
R
X
T
X
R
X
T
X
PWRSW
MULTIRATE
1
2
SD
BP
PWR
PWR
1000 BASE
M
A
I
N
P
R
I
S
E
C
AT
LK
AT
LK
AT
PWR
SW
SEC
LK
RESET
1
2
LB
SD
BP
LB
SD
BP
LB
SD
BP
LB
MULTIRATE MULTIRATE
1
2
SD
BP
PWR
LB
SD
BP
LB
MULTIRATE
1
2
SD
BP
PWR
LB
SD
BP
LB
MULTIRATE
1
2
SD
BP
PWR
LB
SD
BP
LB
CIRCUI
T
BOARD
RX
TX
RX
TX
RX
TX
RX
TX
RX
TX
RX
TX
RX
TX
RX
TX
RX
TX
RX
TX
BWDM SFP
RELEASE
MEHCANISM

RXTX

3. Align the new SFP module so the receiver (▲) is positioned above the

transmitter (▼). For a BWDM SFP, align it so the visible part of the circuit

board located at the back of the module is to the right.

4. Keeping the release mechanism in the closed position (bail latch should be

locked in place), slide the new SFP into the slot and push it firmly in place.

5. Remove the protective dust cover on the LC or SC connector.

6. Reconnect the network cables. Verify proper segment connectivity via the

green LK LED, which will be lit.