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TND2ML1B

Brand: Huawei
Model: ML1B

Description: 16 *E1 Signals Interface Board

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HUAWEI

TND2ML1B

ML1B

The TND2ML1B is an E1 interface board. The TND2ML1B can be used on the OptiX PTN 910, PTN 950 equipment to accesses and processes 16*E1 signals

The TND2ML1B must be used with the system control board to access and process 16 channels of E1 services

Basic Functions Accesses and processes 16 x E1 signals and supports the ATM E1,IMA, CES, and ML-PPP protocols.
Interface function Supports collection of bandwidth utilization statistics at an IMA/ML-PPP port.
Fractional E1 Supports the CES services and IMA services at 64 kbit/s level.
PRBS Supports the PRBS function in framed or unframed mode of an E1 port in the receive/transmit direction.
ATM/IMA Number of supported IMA groups/supported ATM E1 services: 16
Maximum number of E1 links or 64 kbit/s level serial ports in each IMA group: 16
Dynamically enables or disables the IMA group, restarts the IMA group protocol, and dynamically adds or deletes the IMA group members.
Supported traffic types: CBR, UBR, UBR+, rt-VBR, nrt-VBR
Number of supported ATM connections (VPC and VCC included): 256 remote connections and 128 local connections
Number of supported ATM services: 64
Encapsulates ATM VPC/VCC service to the PWE3 in the N-to-1(N≤32) or 1-to-1 format.
Encapsulates the ATM cells to the PW in the concatenation and non-concatenation modes. The number of PW connections that support the cell concatenation is 64, and the maximum number of concatenated cells is 31.
ATM OAM on the UNI side and NNI side: Supports the CC test.
Supports the LB test.
CES Number of supported CES services: 16
Supported emulation mode: CESoPSN and SAToP
Supports the timeslot compression function. Provides the idle 64 kbit/s timeslot suppression function for the CES services in the CESoPSN mode to save the transmission bandwidth.
Supported clock modes: Retiming mode
The jitter compensation buffer time of the CES service can be set.The jitter buffer time ranges from 0.375 ms to 16 ms, and the step value is 0.125 ms.
The packet loading time of the CES service can be set. The encapsulation buffer time ranges from ms to 3 ms, and the step value is 0.125 ms.
ML-PPP Number of supported ML-PPP groups: 7
Maximum number of links supported by each ML-PPP group 16
Functions as the NNI interface, and functions as the UNI interface to access IP packets of the L3VPN services.
Board Name TND2ML1B
Nominal bit rate 2048
Type of Interface Impedance 120 ohm
Interface code HDB3
Pulse waveform at the output interface Complies with ITU-T G.703
Input interface attenuation tolerance 0 to 6
Anti-interference capability of the input interface Complies with ITU-T G.703
Input jitter tolerance Complies with ITU-T G.823
Output jitter Complies with ITU-T G.823
Dimensions (mm) 20.32 (H) x 225.75 (D) x 193.80 (W)
Net Weight (kg) 0.44
Volume weight (kg) 3
Functions and Features
Basic Functions Accesses and processes 16 x E1 signals and supports the ATM E1,IMA, CES, and ML-PPP protocols.
Interface function Supports collection of bandwidth utilization statistics at an IMA/ML-PPP port.
Fractional E1 Supports the CES services and IMA services at 64 kbit/s level.
PRBS Supports the PRBS function in framed or unframed mode of an E1 port in the receive/transmit direction.
ATM/IMA Number of supported IMA groups/supported ATM E1 services: 16
Maximum number of E1 links or 64 kbit/s level serial ports in each IMA group: 16
Dynamically enables or disables the IMA group, restarts the IMA group protocol, and dynamically adds or deletes the IMA group members.
Supported traffic types: CBR, UBR, UBR+, rt-VBR, nrt-VBR
Number of supported ATM connections (VPC and VCC included): 256 remote connections and 128 local connections
Number of supported ATM services: 64
Encapsulates ATM VPC/VCC service to the PWE3 in the N-to-1(N≤32) or 1-to-1 format.
Encapsulates the ATM cells to the PW in the concatenation and non-concatenation modes. The number of PW connections that support the cell concatenation is 64, and the maximum number of concatenated cells is 31.
ATM OAM on the UNI side and NNI side: Supports the CC test.
Supports the LB test.
CES Number of supported CES services: 16
Supported emulation mode: CESoPSN and SAToP
Supports the timeslot compression function. Provides the idle 64 kbit/s timeslot suppression function for the CES services in the CESoPSN mode to save the transmission bandwidth.
Supported clock modes: Retiming mode
The jitter compensation buffer time of the CES service can be set.The jitter buffer time ranges from 0.375 ms to 16 ms, and the step value is 0.125 ms.
The packet loading time of the CES service can be set. The encapsulation buffer time ranges from ms to 3 ms, and the step value is 0.125 ms.
ML-PPP Number of supported ML-PPP groups: 7
Maximum number of links supported by each ML-PPP group 16
Functions as the NNI interface, and functions as the UNI interface to access IP packets of the L3VPN services.
Technical Specification
Board Name TND2ML1B
Nominal bit rate 2048
Type of Interface Impedance 120 ohm
Interface code HDB3
Pulse waveform at the output interface Complies with ITU-T G.703
Input interface attenuation tolerance 0 to 6
Anti-interference capability of the input interface Complies with ITU-T G.703
Input jitter tolerance Complies with ITU-T G.823
Output jitter Complies with ITU-T G.823
Mechanical Specifications
Dimensions (mm) 20.32 (H) x 225.75 (D) x 193.80 (W)
Net Weight (kg) 0.44
Volume weight (kg) 3

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