ZyXEL Communications unified security gateway User Manual

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ZyWALL USG 20/20W User’s Guide
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 5 1  
Product Specifications
The following specifications are subject to change without notice. See 
 for a general overview of key features.
This table provides basic device specifications.
This table provides hardware specifications.
It is recommended that you do NOT wall-mount the ZyWALL. A 
wall-mounting kit is not included.
Table 228   Default Login Information
ATTRIBUTE
SPECIFICATION
Default IP Address 
(P2, P3)
192.168.1.1
Default Subnet Mask 
(P2, P3)
255.255.255.0 (24 bits)
Default Password
1234
Table 229   Hardware Specifications
FEATURE
SPECIFICATION
Ethernet Interfaces
Number of Ethernet interfaces: 4
Management interface
RS-232, DB9F connector
USB Slots
1, 2.0 plug and play
Compatible USB Cards 
(3G)
See www.zyxel.com for the supported 3G cards.
Power Requirements
12V DC
Operating Environment
Temperature: 0 C to 40 C 
Humidity: 20% to 95% (non-condensing)
Storage Environment
Temperature: -30 C to 60 C
Humidity: 20% to 95% (non-condensing)
MTBF
Mean Time Between Failures: 323,823 hours
Wall-mounting
The ZyWALL has wall-mounting holes on the bottom panel. 
The centers of the holes are located 156 mm apart.