Radiance 10/100 Mbps Services Line Card
18
When making fiber optic connections, make sure that the transmit (TX)
optical fiber of the services line card connects to the receive (RX) optical
fiber of the connected device, and that the transmit (TX) optical fiber of
the remote device connects to the receive (RX) optical fiber of the
services line card.
BWDM Interface
The bidirectional wavelength division multiplexed (BWDM) transceiver
provides one singlemode SC connector that supports a maximum
segment length of 20 km. BWDM transceivers must always be used in
complementary pairs. That is, the O383-20-13 must be connected to the
O383-20-55.
The O383-20-31 transmits data at a wavelength of 1310 nm and
receives at 1550 nm. Correspondingly, the O383-20-55 transmits data at
1550 nm and receives at 1310 nm.
Use the link (LK) LEDs on the front panel of the card to verify correct
segment connectivity. As you insert the cable into each port, the LK LED
will be lit if the following conditions are met:
•
Power is being applied to the chassis.
•
There is an active device connected to the other end of the cable, and
it is sending idle link signals.
•
All connections are secure and the cables are undamaged.
•
Both ends of the cable are set to the same auto-negotiation state. To
maximize device compatibility, the R821 is shipped with auto-negoti-
ation enabled on both ports. If necessary, disable auto-negotiation and
set full duplex on the fiber port of the remote device to establish link.
10/100BASE
LK
RX
DIS
AT
MAN FD PWR
1
2
SPD
RX
TX
TX
R821 with
O383-20-31
R821 with
O383-20-55
up to 20 km
TX 1310 nm
RX 1550 nm
TX 1550 nm
RX 1310 nm
C
O
N
S
O
L
E
LBK
10/100BASE
LK
RX
DIS
AT
MAN FD PWR
1
2
SPD
RX
TX
C
O
N
S
O
L
E
LBK
