HUAWEI B683 Wireless Gateway V100R001
Product Description
Issue 01 (2010-11-19)
Commercial in Confidence
Page 11 of 22
Table 3-5
External GSM/WCDMA main diversity antenna specifications(Optional)
z
Signals may be weak in some areas; thus, you can choose whether to use the external
antenna.
z
The external antenna is an optional accessory.
z
The external antenna can be used indoor only.
Item
Description
Frequency
z
824
～
960MHz
z
1710
～
1990MHz
z
1920
～
2170MHz
Input impedance
50
Ω
Standing wave ratio < 3 (after being matched, all frequency points)
H side gain
≥
2dBi (horizontal level peak value)
Polarization
Linear polarization (vertical)
Length of the
connection cable
1m
Interface standard
SMA-C-J1.5
3.3 Software Specifications
Table 3-6
Software specifications
Item
Description
Router
:
z
Supports static routing
z
Supports the default routing (the routing address is 0.0.0.0).
You can set the WAN connection to the default routing to
generate default routing table items
Supports ARP
Supports ICMP
Supports DNS Relay
Gateway
NAT:
z
Supports NAT, NAPT (compliant with RFC2663, RFC3022
and RFC3027)
z
Supports fragment message identification for normal NAT
z
Supports ALG
z
Supports NAT traverse of VPN related protocol (PPTP and
L2TP)
