Omnitron Systems iConverter 8878-27 User Manual

iConverter® CWDM/AD
1 Channel Single-Fiber Add/Drop Multiplexer
USER MANUAL
Product Overview
iConverter 1-Channel Single-Fiber CWDM/AD modules are Course Wave Division
Multiplexing (CWDM) Optical Add and Drop Multiplexers (OADM). The CWDM/AD
modules add (multiplex) and drop (de-multiplex) one channel on one or both
directions of a CWDM single-fiber common link. Nine standard models of the
1-Channel Single-Fiber CWDM/AD modules are available.
The Single-Fiber CWDM/AD modules support dual fiber Channel Ports and single-
fiber Common Port connections. Each fiber strand on the Channel Port supports a
different wavelength, one wavelength for transmit (TX) and a different wavelength
for receive (RX).
Model Numbers
Model Type Model Number
Channel Port Left
8878-27 1271/1291
8878-31 1311/1331
8878-35 1351/1371
8878-39 1391/1411
1-Channel
8878-43 1431/1451
OADM
8878-47 1471/1491
8878-51 1511/1531
8878-55 1551/1571
8878-59 1591/1611
Figure 1: Front Panel View of a 1-Channel CWDM/AD module
ITU Center Wavelength (nm)
TX/RX
Channel Port Right Common Port
1291/1271 1271 to 1611
1331/1311 1271 to 1611
1371/1351 1271 to 1611
1411/1391 1271 to 1611
1451/1431 1271 to 1611
1491/1471 1271 to 1611
1531/1511 1271 to 1611
1571/1551 1271 to 1611
1611/1591 1271 to 1611
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Figure 2: 1-Channel Add/Drop MUX/DEMUX
Figure 2 illustrates the operation of the Add/Drop MUX/DEMUX. The illustration
shows the Common Ports (COM-L and COM-R) as bidirectional single-fiber
connections. The Channel Ports (CH1-L and CH1-R) are composed of two different
wavelengths creating a dual fiber connection.
As an example, the illustration shows the Channel Port wavelength configuration
for model 8878-47. The wavelength for CH1-L RX is 1490 and a TX of 1470, and
CH1-R RX of 1470 and a TX of 1490.
Port Definitions
Channel Port (Left and Right)
The Channel Ports transmit and receive signals using two specific CWDM
wavelengths based on the CWDM/AD model. The Channel Ports are multiplexed
and demultiplexed from the Common Port. As shown in Figure 2, each Channel
Port on the CWDM/AD module has a Left (CH1-L) and Right (CH1-R) port. Data
transmitted and received by Channel Port Left is aggregated on Common Port Left
(COM-L) and data transmitted and received by Channel Port Right (COM-R) is
aggregated on Common Port Right.
When connecting external dual fiber transceivers to the Channel Port, select an
optical transceiver that matches the receive (RX) wavelength of the specific Channel
Port. Since the Channel Port uses two different wavelengths over dual fiber, the
receiver of the external dual fiber transceiver must have the capability to detect
the transmit wavelength of the Channel Port. Typically, the receiver of a dual fiber
transceiver has an operating center wavelength of 1260nm to 1610nm. Verify the
external transceiver's optical parameters before using.
Common Port (Left and Right)
The aggregated wavelengths from the Channel Ports are transmitted and received
over the single-fiber Common Port. As shown in Figure 2, there are Left and Right
Common Ports on the CWDM/AD module. Common Port Left (COM-L) and Common
Port Right (COM-R) are internally connected to pass through all wavelengths not
dropped or added by the specific CWDM/AD model Only the specific wavelengths
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