Pem - Huawei SE2900 Hardware Description

HUAWEI SE2900 Session Border Controller
Hardware Description
Item

1.3.1 PEM

Functions
Table 1-5
Table 1-5 PEM functions
Function
Power supply
Power
distribution
monitoring
Protection
Appearance
Figure 1-10
Issue 01 (2016-01-15)
Humidity
Altitude
Short term means that the consecutive working period is not more than 96 hours and that the cumulative
working period over a year is not more than 15 days.
describes the functions of the power entry module (PEM).
Description
 Supplies power to devices in the subrack.
 Supports wide input voltage range.
 Detects the installation status and type of PEMs.
 Provides the indicators on the panel to indicate PEM status.
 Detects the voltage and power of the subrack.

Detects the status of the circuit breakers and surge protection circuits.

Detects the PEM temperature.
 Reports voltage, current, and power information in real time.
 Implements the electronic label function.

Implements surge protection, short circuit protection, and
over-current protection.
 Prevents incorrect insertion.
shows a PEM.
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1 Service Processing Device
Specifications
 Long-term operating humidity: 5% RH to
85% RH (non-condensing)
 Short-term operating humidity: 5% RH to
95% RH (non-condensing)
 Storage humidity: 10% RH to 95% RH
(non-condensing)
-60 m to +4000 m (-196.85 ft to +13123.20 ft)
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