The LE0DCMUA0000 consists of the following modules:
Device management module: sends interface control signals for device management.
Backplane interface module: provides management channels for power modules, fan modules, and communication channels between the active and standby LE0DCMUA0000 cards.
The LE0DCMUA0000 manages power modules and fan modules in a chassis. The LE0DCMUA0000 is hot swappable. Two LE0DCMUA0000 cards can be installed in a chassis to work in active/standby mode.
Fan module management
The LE0DCMUA0000 provides the following fan module management functions:
Fan module presence detection
Fan module registration management
Fan speed monitoring
Fan speed control
Management and report of fan module alarms
Query of fan module electronic labels
Power module management
Only 1600 W DC power modules are managed using the I2C bus, and all the other power modules are managed using the RS485 bus.
The LE0DCMUA0000 supports real-time power module presence detection. Power modules in a chassis register with the LE0DCMUA0000. After they register, the LE0DCMUA0000 obtains electronic labels of the power modules and saves the electronic labels for users to query. Then the power modules are managed using the RS485 bus or I2C bus:
Using the RS485 bus:
The LE0DCMUA0000 queries the current and voltage of power modules in real-time.
When detecting an alarm about a power module, the LE0DCMUA0000 sends the alarm to the MPU. When the alarm is cleared, the LE0DCMUA0000 reports alarm clearance to the MPU.
When the switch is working in deep energy saving mode, the LE0DCMUA0000 automatically shuts down redundant power modules to save power. You can set the deep energy saving mode using the set power manage mode command.
Using the I2C bus:
When detecting an alarm about a power module, the LE0DCMUA0000 sends the alarm to the MPU. When the alarm is cleared, the LE0DCMUA0000 reports alarm clearance to the MPU.
Specifications of the LE0DCMUA0000
Item
Description
Physical specifications
Dimensions (H x W x D): 19.8 mm x 112.9 mm x 412.7 mm (0.78 in. x 4.44 in. x 16.25 in.)
Weight: 0.22 kg (0.49 lb)
Maximum power consumption: 1 W
LE0DCMUA0000 FAQ
Q1: Is this optical module compatible with the Huawei S6730-S48X6C core switch? Is an additional adapter required?
A1: Fully compatible! No additional adapters are needed. Simply insert it into the QSFP+ slot on the switch. It automatically negotiates 40G speeds, is plug-and-play, and is compatible with the switch's native interconnect logic.
Q2: Will there be signal attenuation over a 10km transmission distance on standard G.652 single-mode fiber? What is the actual transmission performance?
A2: No! Optimized for G.652/G.653/G.655 standard single-mode fiber, signal attenuation over 10km is <0.5dB, meeting industry-leading link standards. Actual operational stability is consistent with short-distance scenarios.
Q3: What are the key differences between this module and Huawei's 40G short-distance optical modules (such as QSFP-40G-SR4)? How to choose?
A3: The core difference lies in transmission distance and fiber type: LE0DCMUA0000 (10km single-mode) is suitable for long-distance interconnection; QSFP-40G-SR4 (150m multimode) is suitable for short-distance interconnection within a data center. For distances > 300m and cross-device/area connections, choose long-distance single-mode; for short-distance interconnection within a data center, choose multimode.
Optical Modules Supported by Huawei S Series Switches
