ZyXEL Communications MS-7206, Руководство пользователя

Страница: 79 / 94

MS-7206 Hardware Installation Guide
79
C
H A P T E R
11
Product Specifications
This appendix lists system features and provides detailed system specifications. See the
chapters on individual interface modules for information on module hardware specifications.
Table 20 MS-7206 Specifications
Chassis Dimensions 315.5 mm (W) x 435 mm (D) x 447.2 mm (H)
9 U
Chassis Weight 13 kg (without any modules or cards installed)
Chassis Rack Mounting The MS-7206 is 19-inch (482.6 mm) or 23-inch (584.2 mm) rack-mountable.
Chassis Slots 6 total (2 for management modules, 4 for interface modules)
Slots The chassis has slots for hot-swappable interface modules and
management switch modules.
Backplane Connect the hot-swappable interface modules and management modules to
the backplane. The backplane is the inside rear panel of the MS-7206.
Hot-swappable interface
modules
The MS-7206 uses hot swappable interface modules.
Management Switch
Module
The MS-7206 accommodates a management switch module that switches
traffic and forwards it between the interface modules and other Ethernet
switches.
Hot-swappable Fan
Module
The MS-7206 is equipped with a hot-swappable fan module to provide easy
maintenance, greater reliability and increased system operating lifetimes.
MF-7201 Fan Module Dimensions:35.7 mm (W) x 268 mm (D) x 269.5 mm (H)
Weight: 1.5 kg
Number of fans: 8
Fan dimensions: 80 mm x 80 mm
Fan Mechanical Operation:
•
Safe design: All fans have rotor-locking protection to prevent damage to
wiring and electrical components. The fan rotors will lock when fan
movement is physically obstructed.
• Locked rotor protection: No damage will occur when the fan rotors are
locked for 72 continuous hours. After this amount of time, damage to the
fans may occur. The fans will automatically restart as soon as the
physical obstruction is removed.
• Polarity protection: A reverse-polarity voltage connection will not cause
damage. After the polarity is corrected, the fan will restart automatically.
• Insulation resistance: There should be more than 10M ohms of
resistance between the housing and the terminal at 500 VDC.
Number of fuses: 1
Fuse specifications: 250 VAC 2A,
Fuse dimensions: 5.2 mm (D) x 20 mm (L)
Power Modules The MS-7206 has dual power modules. One power module is redundant.
The MS-7206 can be fully powered by just one power module so the system
can keep running while you replace a power module.