CE7855-32Q-EI
Version Mapping
Table 2-326 lists the mappings between the CE7855-32Q-EI and software versions.
Appearance and Structure
The figures in this document are for reference only.
1 |
Power supply slot 1 Applicable power modules:
|
2 |
Power supply slot 1 Applicable power modules:
|
3 |
Fan slot 1 Applicable fan modules:
|
4 |
Fan slot 2 Applicable fan modules:
|
5 |
Console port |
6 |
ETH management port (RJ45) |
7 |
Barcode label
NOTE:
This label is drawable, and you can pull it outward to view the ESN barcode and MAC address of the switch.This label is drawable, and you can pull it outward to view the ESN barcode and MAC address of the switch. |
8 |
USB port |
9 |
Thirty-two 40GE QSFP+ Ethernet optical ports NOTE:
A 40GE QSFP+ port can be split into four 10GE ports. In V200R005C00 and later versions, a QSA convertor can be installed on a 40GE interface that has been split. Installing a medium whose rate is 10 Gbit/s on the QSA convertor makes a 40GE interface function as a 10GE interface. Only the first split interface works and other three split interfaces are unavailable. If a QSA convertor is installed on an interface that is not split or a medium whose rate is not 10 Gbit/s is installed on the QSA convertor on an interface that has been split, the interface enters the Down(Transceiver type mismatch) status. |
10 |
Three port-side mounting holes for mounting brackets |
11 |
Four middle mounting holes for mounting brackets |
12 |
Four power-supply-side mounting holes for mounting brackets |
13 |
Ground screw |
- |
- |
Slot
Power supply slot
The CloudEngine 8800, 7800, 6800, and 5800 series switches (except the CE8850-64CQ-EI) have two power supply slots, in which power modules can be installed to provide power to the chassis. A chassis can have one or two power modules. Double power modules can provide higher reliability.
The CloudEngine 8800, 7800, 6800, and 5800 series switches (except the CE8850-64CQ-EI) support double power modules (1+1 backup).- When both power modules are working properly, they equally provide power for a chassis.
- When one power module fails, the other one provides all power required for a chassis.
Fan slot
The CloudEngine 8800, 7800, 6800, and 5800 series switches (except the CE8850-64CQ-EI, CE6863-48S6CQ, CE6881-48S6CQ, CE6820-48S6CQ, CE6863-48S6CQ-K, CE6881-48S6CQ-K, CE6881E-48S6CQ and CE6857-48S6CQ-EI) have two fan slots, in which fan modules can be installed to cool the chassis, ensuring efficient heat dissipation and system stability. A chassis must have two working fan modules to ensure normal operating.
All fan modules are hot swappable.
Airflow
- Front-to-back airflow: The power modules and fan modules using front-to-back airflow are marked
or
. Air flows into the chassis from the power supply side and flows out from the port side, as shown in Figure 2-155 (CE5800 as an example).
- Back-to-front airflow: The power modules and fan modules using back-to-front airflow are marked
or
. Air flows into the chassis from the port side and flows out from the power supply side, as shown in Figure 2-156 (CE5800 as an example).
When the power module and fan module use forcible heat dissipation, they must use the same airflow method. For example, if the power module with back-to-front airflow is used, the fan module with back-to-front airflow must be used.
Indicators
Indicators on the CE7855-32Q-EI are the same as those on the CE7850-32Q-EI. The CE7850-32Q-EI is used as an example here to describe the indicators.
Ports
40GE QSFP+ Ethernet Optical Port
Console Port
ETH Management Port (RJ45)
USB Port
A USB flash drive can be connected to the USB port for log backup, system software backup and uploading, or USB-based deployment.
Specifications
Item |
Description |
|
---|---|---|
Physical specifications |
|
|
Environment parameters |
Temperature |
|
Relative humidity |
5% RH to 95% RH, noncondensing |
|
Altitude |
< 5000 m (16404 ft.) |
|
Noise (sound pressure, 27°C) |
|
|
Power specifications |
Power source type |
AC |
AC power input |
|
|
DC power input |
|
|
High-voltage DC power input |
Not supported |
|
Rated input current |
|
|
Chassis power consumption |
Maximum power consumption |
444 W |
Typical power consumption |
262 W (100% throughput, QSFP+ cables on 32 ports, double power modules) |
|
Chassis heat dissipation |
Maximum heat dissipation |
1515 BTU/hr |
Typical heat dissipation |
895 BTU/hr (100% throughput, QSFP+ cables on 32 ports, double power modules) |
|
Surge protection |
AC Power module: 6 kV in common mode and 6 kV in differential mode |
|
Heat dissipation |
Heat dissipation mode |
Air cooling |
Airflow |
Front-to-back or back-to-front, depending on the fan modules and power modules |
|
Reliability and availability |
Power module backup |
1+1 backup |
Fan module backup |
1+1 backup not supported
NOTE:
CE7800 chassis uses two fan modules, with each fan module containing two fans. The four fans in the chassis work in 3+1 backup mode. |
|
Hot swap |
Supported by all power modules and fan modules |
|
Mean time between failures (MTBF) |
49.81 years |
|
Mean time to repair (MTTR) |
1.81 hours |
|
Availability |
0.99999584354 |
|
Technical specifications |
Processor |
1.5 GHz, quad-core |
DRAM Memory |
4 GB |
|
NOR Flash |
16 MB |
|
NAND Flash |
1 GB |
|
Stack |
Service port supporting the stack function |
40GE optical ports |
Certification |
|
Ordering Information
Ordering information is subject to change without notice in the case of product upgrades. Ordering information provided in this manual is for reference only. To obtain latest ordering information, contact Huawei switch distributors or local Huawei representative office.
Table 2-331 provides the ordering information.
Part Number |
Part Model |
Part Description |
---|---|---|
02350SQX |
CE7855-32Q-EI |
CE7855-32Q-EI Switch (32-Port 40GE QSFP+, Without Fan Box and Power Module) |
02350SBG |
CE7855-EI-F-B0A |
CE7855-32Q-EI Switch (32-Port 40GE QSFP+, 2*AC Power Module, 2*FAN Box, Port-side Exhaust) |
02350SBH |
CE7855-EI-B-B0A |
CE7855-32Q-EI Switch (32-Port 40GE QSFP+, 2*AC Power Module, 2*FAN Box, Port-side Intake) |