Zultys MX250, Руководство по оборудованию

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3. Hardware
13
9. Console button – Pressing this button during boot up causes the Second Ethernet Port to
become the console port assigned the fixed IP address of 192.168.1.100 . Read section 3.5 on
page 18 for instructions on using the console port.
10. Power LED – See section 3.2 and Chapter 7, starting on page 37, for a description of the Power
LED.
11. Load LED – See section 3.2 and Chapter 7, starting on page 37, for a description of the Load
LED.
12. Status LED – See section 3.2 and Chapter 7, starting on page 37, for a description of the Status
LED.
13. AC Input – Provides a universal fused input for ac power. You can insert 100 Vac to 240 Vac
at 47 Hz to 63 Hz. When the dc power input is connected to a –48 V battery, the system
remains powered when the ac power is off. See section 4.3 on page 23.
14. Hard Discs – Two slots which hold the SCSI hard disc drives. The MX250 requires one to
operate. The other serves as a redundant hard disk drive that is mirrored with the first one
in a RAID1 configuration. The system is shipped with one hard disc; a software license is
required to enable RAID1 redundancy of the second disc.
15. Serial Number – This number identifies the main chassis. Refer to this number to identify the
system to a technical support representative or when returning the system for repair or
replacement.
16. Interface slots – Each slot can accommodate one interface card for connection to the PSTN or
an ISP. There are four available types of interface cards:
•
FXS : 8 analog subscriber-side circuits using loop start. See section 3.4.2.
•
FXO : 8 analog exchange-side circuits using loop start or ground start. See section 3.4.2.
•
PCM : 2 full-duplex PCM circuits which support T1 or E1 functionality. See section 3.4.3.
•
BRA : 4 full-duplex ISDN BRA S/T circuits. See section 3.4.4.
17. Fan Tray – This removable tray contains two fans and the holder for two AAA batteries used
to power the system’s real time clock. See section 6.2 on page 31.
3.4 MX250 Circuits
The MX250 supports the following circuits:
3.4.1 10/100Base-T
3.4.1.1 Usage
The MX250 has two 10/100Base-T Ethernet circuits. Power over Ethernet is not provided on either
circuit.
•
Circuit 1 connects to your LAN and provides data connectivity for the enterprise. You can
then use the MX250 firewall capabilities.
•
Circuit 2 can be used as an additional circuit to connect to your LAN or as the console circuit
for initial provisioning, as described in section 3.5.