XPIC

When two IF boards that form an XPIC working group are installed on an IDU, you can create an XPIC working group to ensure that the XPIC working group is configured with the same work mode, transmission frequency, TX power, and ATPC attributes. In this user interface, you can perform operations such as creating, querying and deleting the XPIC working group.

Navigation Path

In the NE Explorer, choose Configuration > Link Configuration from the Function Tree. Click the XPIC tab.

Guideline

Relationship with the 1+1 Protection Configuration: The two IF boards in an XPIC working group cannot be configured into one 1+1 protection group, but the two IF boards in different XPIC working groups can be configured into one 1+1 protection group. Therefore, the four IF boards in two XPIC working groups can form two 1+1 protection groups.
Relation with the N+1 Protection: Each member of an XPIC working group can work as the working channel or the protection channel of the N+1 protection.
Relation with the ATPC Feature: The transmit power of the two ODUs that are in an XPIC working group should be the same if possible. Hence, each of the ATPC parameters should be set to the same value for the IF boards that are in an XPIC working group.
When CCDP is applied to the STM-1 microwave links, the IFX/IFX2 boards must be installed and the XPIC function must be enabled.
An XPIC working group must be configured to ensure that the XPIC working group is configured with the same working mode, transmission frequency, transmit power, and ATPC attributes.
When the used ODUs support two T/R spacings, ensure that the two ODUs of an XPIC working group adopt the same T/R spacing.

NOTICE:

Deleting XPIC working groups may interrupt services. Exercise caution when you perform this operation.

Parameters

**Table 1** XPIC
Field	Value	Description
Group ID	For example: 1	Displays the group ID.
Polarization Direction - H	slot number-board name-port number	Sets the polarization direction.
Polarization Direction - V	slot number-board name-port number	Sets the polarization direction.
Link ID - H	For example: 1	Displays the link ID of polarization direction-H.
Link ID - V	For example: 2	Displays the link ID of polarization direction-V.
IF Bandwidth Mode	FCC	Displays the IF bandwidth mode. FCC(Federal Communications Commission) indicates the bandwidth mode for North America.
T/R Spacing(MHz)	For example: 161	Sets the interval between the transmit frequency and the receive frequency of an ODU board to avoid mutual interference.
IF Channel Bandwidth	For example: 40MHz	The channel frequency bandwidth, that is, channel bandwidth or channel interval, depends on the spectrum of the signal transmitted, or depends on the capacity and the modulation mode used.
Power to Be Received - V(dBm)	-90.0 to -20.0	Sets the power to be received of polarization direction-V.
Power to Be Received - H(dBm)	-90.0 to -20.0	Sets the power to be received of polarization direction-H.
Maximum Transmit Power (dBm)	-10.0 to 35.0	Sets the maximum transmit power for a radio frequency port.
Transmit Power (dBm)	-10.0 to 35.0	Sets the transmit power for a radio frequency port.
Transmit Frequency (MHz)	0 to 4294967.295	Sets the transmit frequency of the ODU board. Signals can be transmitted and received properly only when the frequencies of the transmitter and the receiver at two ends are matched.
Transmission Status	mute, unmute	Sets the transmitting status of a radio frequency transmitter. The parameter value can be accurate to only 0.1 dBm.
ATPC Adjustment(dB)	1, 2, 3, 4, 5	Sets the parameter to specify the step for increasing or decreasing the transmit power of an ODU board at a time during the ATPC adjustment.
ATPC Enable Status	Disabled, Enabled Default value: Disabled	When the ATPC is enabled, according to the current receive power of the ODU and the set ATPC thresholds, the ATPC module inserts the ATPC overhead. According to the ATPC overhead, the opposite ODU adjusts the transmit power. When the ATPC is disabled, the ATPC module does not insert any ATPC overhead.
ATPC Upper Threshold(dBm)	-75.0 to -20.0	When the ATPC function is enabled, the opposite ODU adjusts the transmit power depending on whether the receive power of the local ODU is within the set range. The ATPC Upper Threshold parameter specifies a value that triggers the reducing of the transmit power of the opposite ODU when the receive power of the local ODU exceeds the value.
ATPC Lower Threshold(dBm)	-90.0 to -35.0	The ATPC Lower Threshold parameter specifies a value that triggers the increasing of the transmit power of the opposite ODU when the receive power of the local ODU is less than the value. The ATPC Lower Threshold parameter is used to prevent the receive power of the local ODU from being too low. If the receive power of the local ODU is too low, services are affected.
ATPC Automatic Threshold Enable Status	Disabled, Enabled	Sets the enable status of ATPC automatic threshold.
AM Boost Enable Status	Enable, Disable	The rated transmit power of ODUs is different in each modulation mode. When the modulation mode with higher bandwidth is used, the maximum transmit power is smaller. After the AM function is enabled, the transmit power reduces regularly as the bandwidth for the modulation mode increases. This reduces system gains and anti-fading compatibilities. After the AM boost function is enabled, the maximum transmit power of ODUs increases in modulation mode with high bandwidth and therefore the system gains increase. NOTE: The AM boost function can be enabled when the following conditions are met: The AM function is enabled. The IF channel bandwidth is 7, 14, 28, or 56 MHz. The guaranteed AM capacity is QPSK, 16QAM, or 32QAM. The full AM capacity is 64QAM, 128QAM, or 256QAM. The ATPC and AM boost functions are exclusive. If ATPC is enabled, the AM boost function is automatically disabled.

**Table 2** Create XPIC Protection Group
Field	Value	Description
IF Bandwidth Mode	FCC	Displays the IF bandwidth mode. FCC(Federal Communications Commission) indicates the bandwidth mode for North America.
Polarization Direction - H	slot number-board name-port number	Sets the polarization direction.
Polarization Direction - V	slot number-board name-port number	Sets the polarization direction.
Link ID - H	For example: 1	Displays the link ID of polarization direction-H.
Link ID - V	For example: 2	Displays the link ID of polarization direction-V.
IF Channel Bandwidth	For example: 40MHz	The channel frequency bandwidth, that is, channel bandwidth or channel interval, depends on the spectrum of the signal transmitted, or depends on the capacity and the modulation mode used.
T/R Spacing(MHz)	For example: 161	Sets the interval between the transmit frequency and the receive frequency of an ODU board to avoid mutual interference.
Maximum Transmit Power (dBm)	-10.0 to 35.0	Sets the maximum transmit power for a radio frequency port.
Transmit Power (dBm)	-10.0 to 35.0	Sets the transmit power for a radio frequency port.
Transmit Frequency (MHz)	0 to 4294967.295	Sets the transmit frequency of the ODU board. Signals can be transmitted and received properly only when the frequencies of the transmitter and the receiver at two ends are matched.
Transmit Status	mute, unmute	Sets the transmitting status of a radio frequency transmitter.
ATPC Enable Status	Disabled, Enabled Default value: Disabled	When the ATPC is enabled, according to the current receive power of the ODU and the set ATPC thresholds, the ATPC module inserts the ATPC overhead. According to the ATPC overhead, the opposite ODU adjusts the transmit power. When the ATPC is disabled, the ATPC module does not insert any ATPC overhead.
ATPC Adjustment(dB)	1, 2, 3, 4, 5	Sets the parameter to specify the step for increasing or decreasing the transmit power of an ODU board at a time during the ATPC adjustment.
ATPC Upper Threshold (dBm)	-75.0 to -20.0	When the ATPC function is enabled, the opposite ODU adjusts the transmit power depending on whether the receive power of the local ODU is within the set range. The ATPC Upper Threshold parameter specifies a value that triggers the reducing of the transmit power of the opposite ODU when the receive power of the local ODU exceeds the value.
ATPC Lower Threshold (dBm)	-90.0 to -35.0	The ATPC Lower Threshold parameter specifies a value that triggers the increasing of the transmit power of the opposite ODU when the receive power of the local ODU is less than the value. The ATPC Lower Threshold parameter is used to prevent the receive power of the local ODU from being too low. If the receive power of the local ODU is too low, services are affected.
ATPC Automatic Threshold Enable Status	Disabled, Enabled	Sets the enable status of ATPC automatic threshold.

**Table 3** Hybrid/AM Configuration
Field	Value	Description
Group ID	For example: 1	Displays the group ID.
Polarization direction	slot number-board name-port number	Sets the polarization direction
AM Status	Disable, Enable	Enables or disables the AM.
Modulation Mode of Guaranteed AM Capacity	QPSK, 16QAM, 32QAM, 64QAM, 128QAM, 256QAM, 512QAM, 1024QAM, 2048QAM, QPSKStrong, 16QAMStrong, 512QAMLight, 1024QAMLight,QPSKStrong_250M, QPSKStrong_500M	Specifies the lowest-order modulation scheme that the AM function supports. This parameter is set according to the network plan. Generally, the value of this parameter is determined by the service transmission bandwidth that the Hybrid radio must ensure and the availability of the microwave link that corresponds to this modulation scheme. This parameter is configurable only when AM Status is set to Enable. NOTE: This parameter can be set to 512QAM, 1024QAM, QPSKStrong, 16QAMStrong, 512QAMLight, or 1024QAMLight only when Running Mode of the board is IS3.
Modulation Mode of the Full AM Capacity	QPSK, 16QAM, 32QAM, 64QAM, 128QAM, 256QAM, 512QAM, 1024QAM, 2048QAM, QPSKStrong, 16QAMStrong, 512QAMLight, 1024QAMLight,QPSKStrong_250M, QPSKStrong_500M	Specifies the highest-order modulation scheme that the AM function supports. This parameter is set according to the network plan. Generally, the value of this parameter is determined by the bandwidth of the services that need to be transmitted over the Hybrid radio and the availability of the microwave link that corresponds to this modulation scheme. This parameter is configurable only when AM Status is set to Enable. NOTE: This parameter can be set to 512QAM, 1024QAM, QPSKStrong, 16QAMStrong, 512QAMLight, or 1024QAMLight only when Running Mode of the board is IS3.
Manual Modulation Mode	QPSK, 16QAM, 32QAM, 64QAM, 128QAM, 256QAM, 512QAM, 1024QAM, 2048QAM, QPSKStrong, 16QAMStrong, 512QAMLight, 1024QAMLight,QPSKStrong_250M, QPSKStrong_500M	specifies the modulation scheme that the microwave link uses for signal transmission. This parameter is configurable only when AM Status or AMAC Status is set to Disable. NOTE: This parameter can be set to 512QAM, 1024QAM, QPSKStrong, 16QAMStrong, 512QAMLight, or 1024QAMLight only when Running Mode of the board is IS3.
Tx Modulation Mode	QPSK, 16QAM, 32QAM, 64QAM, 128QAM, 256QAM, 512QAM, 1024QAM, 2048QAM, QPSKStrong, 16QAMStrong, 512QAMLight, 1024QAMLight,QPSKStrong_250M, QPSKStrong_500M	Sets the modulation mode of the transmit-end.
Rx Modulation Mode	QPSK, 16QAM, 32QAM, 64QAM, 128QAM, 256QAM, 512QAM, 1024QAM, 2048QAM, QPSKStrong, 16QAMStrong, 512QAMLight, 1024QAMLight,QPSKStrong_250M, QPSKStrong_500M	Sets the modulation mode of the receive-end.

**Table 4** ATPC Management
Field	Value	Description
Group ID	For example: 1	Displays the group ID.
ATPC Enable Status	Disabled, Enabled Default value: Disabled	When the ATPC is enabled, according to the current receive power of the ODU and the set ATPC thresholds, the ATPC module inserts the ATPC overhead. According to the ATPC overhead, the opposite ODU adjusts the transmit power. When the ATPC is disabled, the ATPC module does not insert any ATPC overhead.
ATPC Upper Threshold (dBm)	-75.0 to -20.0	When the ATPC function is enabled, the opposite ODU adjusts the transmit power depending on whether the receive power of the local ODU is within the set range. The ATPC Upper Threshold parameter specifies a value that triggers the reducing of the transmit power of the opposite ODU when the receive power of the local ODU exceeds the value. This parameter can be set only when ATPC Enable Status is set to Enabled.
ATPC Lower Threshold (dBm)	-90.0 to -35.0	The ATPC Lower Threshold parameter specifies a value that triggers the increasing of the transmit power of the opposite ODU when the receive power of the local ODU is less than the value. The ATPC Lower Threshold parameter is used to prevent the receive power of the local ODU from being too low. If the receive power of the local ODU is too low, services are affected. This parameter can be set only when ATPC Enable Status is set to Enabled.
ATPC Automatic Threshold Enable Status	Disabled, Enabled	Sets the enable status of ATPC automatic threshold. This parameter can't be set only when ATPC Enable Status is set to Enabled.