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TND1MD1A

Brand: Huawei
Model: MD1A

Description: 32-channel E1 Electrical Interface Board

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HUAWEI

TND1MD1A

MD1A

The TND1MD1A is an E1 interface board. The TND1MD1A can be used on the OptiX PTN910, 950 equipment to accesses and processes 32 channels of E1 services.

The TND1MD1A supports flexibly configured, and protocols such as ATM E1, IMA, CES, and MLPPP are supported.

Basic Functions Accesses and processes 32 x E1 signals and supports the ATM E1, IMA, CES, and ML-PPP protocols.
DCN Supports the in-band DCN. By default, the DCN function is enabled at the first and the thirty-second E1 ports. In addition, this function can be disabled or enabled manually.
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:32
Maximum number of E1 links or 64 kbit/s level serial ports in each IMA group:16a
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): 512 remote connections
256 local connections
Number of supported ATM services:64
Encapsulates ATM VPC/VCC service to the PWE3 in the Nto-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: Supports the CC test and Supports the LB test and NNI side: support the CC&LB test.
CES Number of supported CES services; 32
Supported emulation mode: CESoPSN and SAToP
Supports the timeslot compression function. Provides the idle 64 kbit/s timeslot suppression function for the CES servicesin the CESoPSN mode to save the transmission bandwidth.
Supported clock modes; Retiming mode, Self-adaptation 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 MLPPP groups: 7
Maximum number of links supported by each ML-PPP group: 16b
Functions as the NNI interface, and functions as the UNI interface to access IP packets of the L3VPN services.
Nominal bit rate 2048
Type of Interface Impedance 75 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) 0.49
Volume weight (kg) 3
Functions and Features
Basic Functions Accesses and processes 32 x E1 signals and supports the ATM E1, IMA, CES, and ML-PPP protocols.
DCN Supports the in-band DCN. By default, the DCN function is enabled at the first and the thirty-second E1 ports. In addition, this function can be disabled or enabled manually.
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:32
Maximum number of E1 links or 64 kbit/s level serial ports in each IMA group:16a
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): 512 remote connections
256 local connections
Number of supported ATM services:64
Encapsulates ATM VPC/VCC service to the PWE3 in the Nto-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: Supports the CC test and Supports the LB test and NNI side: support the CC&LB test.
CES Number of supported CES services; 32
Supported emulation mode: CESoPSN and SAToP
Supports the timeslot compression function. Provides the idle 64 kbit/s timeslot suppression function for the CES servicesin the CESoPSN mode to save the transmission bandwidth.
Supported clock modes; Retiming mode, Self-adaptation 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 MLPPP groups: 7
Maximum number of links supported by each ML-PPP group: 16b
Functions as the NNI interface, and functions as the UNI interface to access IP packets of the L3VPN services.
Technical Specification
Nominal bit rate 2048
Type of Interface Impedance 75 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) 0.49
Volume weight (kg) 3

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