11
corresponding management interfaces and network interfaces (printed on the panel as
Link
and
Act
).
The ES4710BD system board is an essential part of the switch, located inside the
switch and providing interconnectivity between the management switch modules (short for
management card) and network interface modules (line card), and for all management
and control signals.
1.4.1.2.2 Power Supply
When powered by AC sources, the 110V/220 VAC input power supplies and
corresponding AC distribution box should be used. The acceptable input power ranges
from 90 ~ 264 VAC at 50 ~ 60 Hz. The maximum output power of each power module is
600W.
1.4.1.2.3 Ventilation and Cooling System
The operating ambient temperature of the ES4710BD is 0 ~ 40
°
C, the thermal design
of the equipment can ensure that the surface temperature of the device will not exceed the
50
°
C to 80
°
C, the highest temperature allowable.
The switch uses fan assemblies to disperse heat, with the air flow being drawn in
through the bottom section and out through the upper section to facilitate air circulation, so
that the switch can maintain normal operation under specified environmental conditions.
Three fan trays are attached to the fan tray slots above the board rack, and ventilation is
provided via 6 axial fans that pump out air. Fan trays are hot swappable for maintenance,
their status are indicated by the FAN indicators on the main switch panel. In addition, dust
gauze is provided under the board rack for filtering the air circulating through the rack. The
dust gauze can be unplugged and removed through the front for maintenance.
1.4.2 Introduction to ES4700BD cards
The following twelve cards for the ES4700BD are currently available:
z
Main control card
（
EM4704BD-M12GX-SFP
）：
The central switching and
controlling module for the ES4704BD, System status control, switch
management, user access control and administration, and network operation
maintenance are performed here. 12 Gigabit SFP ports are also provided.
z
Main control card
（
EM4704BD-M24TX4GC
）：
The central switching and
controlling module for the ES4704BD, System status control, switch
management, user access control and administration, and network operation
maintenance are performed here. 24 10/10Base-TX ports with 4 Gigabit combo
ports(RJ45or SFP) are also provided.
z
Main control card (EM4710BD-AGENT): The central switching and controlling
module for the ES4710BD. System status control, switch management, user
Содержание ES4704BD
Страница 1: ...i www edge core com ES4700 series Chassis Core Routing Switch...
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Страница 52: ...42 FIG 1 31 ES4710BD Rear Panel View 1 4 9 Side Panels...