The LE0D00CKMA00 is a daughter card installed in the main control unit of the S12700 to provide clock and time synchronization. This card has two Building Integrated Timing Supply (BITS) ports.
The LE0D00CKMA00 consists of the following functional units:
Clock synchronization unit (synchronous Ethernet clock)
Time synchronization unit (IEEE 1588 module)
The LE0D00CKMA00 provides the following functions:
Provides the 19.44 MHz system clock and external clock signals. The output clock signal complies with the ITU-T G.813 standard.
Implements the IEEE 1588 protocol to ensure time synchronization on the network. Time synchronization accuracy is within 0.1 us, which complies with the 1588v2 protocol.
Ports on the LE0D00CKMA00
Attribute
Description
Connector type
RJ45
Working mode
Transmission rate
Clock synchronization: 2 MHz, 2 Mbps, 1.544 Mbps
Time synchronization: 9600 bit/s (full-duplex mode supported)
Standards compliance
Clock synchronization: E1 and T1
Time synchronization: DCLS and time of day (ToD)
Specifications of the LE0D00CKMA00
Item
Description
Physical specifications
Dimensions (H x W x D): 2.0 mm x 100.0 mm x 145.0 mm (0.08 in. x 3.94 in. x 5.71 in.)
Weight: 0.10 kg (0.2 lb)
Maximum power consumption: 6 W
LE0D00CKMA00 FAQ
Q1: What are the core advantages of this service board? What practical value does 100GE bandwidth bring?
A1: The core advantages are high bandwidth, long-distance transmission, dual-rate compatibility, and low power consumption of 100GE. 100GE bandwidth reduces the number of links, simplifies network architecture, improves data transmission efficiency, and is suitable for petabyte-level data exchange scenarios.
Q2: Which optical modules does it support? Is it directly compatible with existing 40G equipment?
A2: It supports Huawei standard QSFP28 100G optical modules (SR4/LR4/ER4) and QSFP+ 40G optical modules; 100G/40G dual-rate adaptive, it can directly connect to existing 40G equipment without additional converter configuration.
Q3: How does its power consumption and long-distance performance compare to a comparable 4-port 100GE board?
A3: Total power consumption ≤160W, 30% more energy efficient than comparable products; supports 2-80km repeater-free transmission, eliminating the need for additional repeater equipment and reducing long-distance networking costs.
Q4: Suitable for scenarios with extremely high speed and reliability requirements? Is installation complex?
A4: Suitable for large data center cores, carrier backbones, financial transaction networks, etc.; supports hot-swapping, installation without downtime, automatic speed recognition after insertion into the switch, and simple configuration.
Optical Modules Supported by Huawei S Series Switches
