Metro Oadm Equipment (Oadm); Fig. 4.1-5 Board Configuration Of Oadm Equipment (Which Adds/Drops 3 Wavelengths); Fig. 4.1-6 Fiber Connections Of Oadm (Which Adds/Drops 3 Wavelengths) - Zte Unitrans ZXMP M600 Technical Instructions

ZXMP M600 (V1.0) Technical Manual

4.1.3 Metro OADM Equipment (OADM)

OADM is used as a node in the middle of the line to add/drop some services. Other
services are directly connected. The functional structure of OADM is shown in Fig.
1.2-3.
Take the OADM that adds/drops 3 wavelengths for example. The board configuration
of the OADM node is shown in Fig. 4.1-5, while the fiber connection is shown in Fig.
4.1-6.
Configuration description:
1.
2.
PCWAS
2
FAN
PCWAS
1

Fig. 4.1-5 Board Configuration of OADM Equipment (which adds/drops 3 wavelengths)

ABLine
ABch1 ABch2
ABLine, ABchn: AB line, channel interface
BALine, BAchn: BA line, channel interface

Fig. 4.1-6 Fiber Connections of OADM (which adds/drops 3 wavelengths)

In Fig. 4.1-5, PCWAS boards are adopted to provide -48V DC power input for
the system.
This configuration is suitable for adding/dropping 3 wavelengths. A_AD1 and
B_AD1 are monitoring channels connecting to AOSC and BOSC on the NCP
board respectively. 1310nm or 1510nm can be chosen as their wavelength.
OAD3
4
NCP
3
OAD
BAch2
ABch3
OTU1 OTU2
NCP
4-4
OTU
6
OTU
5
BALine
BAch3 BAch1