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Appendices
Glossary
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Glossary-1
10BASE-T
IEEE 802.3 specification for 10 Mbps Ethernet over two pairs of
Category 3, 4, or 5 UTP cable.
100BASE-TX
IEEE 802.3u specification for 100 Mbps Fast Ethernet over two
pairs of Category 5 UTP cable.
Auto-Negotiation
Signaling method allowing each node to select its optimum
operational mode (e.g., 10 Mbps or 100 Mbps and half or full
duplex) based on the capabilities of the node to which it is
connected.
Bandwidth
The difference between the highest and lowest frequencies
available for network signals. Also synonymous with wire speed,
the actual speed of the data transmission along the cable.
Collision
A condition in which packets transmitted over the cable interfere
with each other. Their interference makes both signals
unintelligible.
Collision Domain
Single CSMA/CD LAN segment.
CSMA/CD
CSMA/CD (Carrier Sense Multiple Access/Collision Detect) is
the communication method employed by Ethernet, Fast Ethernet,
or Gigabit Ethernet.
End Station
A workstation, server, or other device that does not forward
traffic.
Ethernet
A network communication system developed and standardized
by DEC, Intel, and Xerox, using baseband transmission,
CSMA/ CD access, logical bus topology, and coaxial cable. The
successor IEEE 802.3 standard provides for integration into the
OSI model and extends the physical layer and media with
FXS Interface
2 FXS ports
Indicator Panel
Line, Phone 1-2, VoIP, USB (F1PI210ENau only), LAN 1-4 (4 port
F1PI241ENau & F1PI241ENau only), WLAN (F1PI241EGau only),
Online, ADSL, PWR (power)
Dimensions
16 x 120 x 190 mm (0.63 x 4.72 x 7.48 in.)
Weight
610 g (1.63 lbs)
Input Power
12 V 1.25 A
Power Consumption
2.52 Watts maximum
Management
Web management
Advanced Features
VoIP-QoS, VAD, call waiting, call forwarding, caller ID, jitter buffer.
Codecs supported - G.711 U/A law, G.729, G.723.1
Dynamic IP Address Configuration – DHCP, DNS, DDNS
Firewall – Client privileges, hacker prevention and logging,
Stateful Packet Inspection
Virtual Private Network – PPTP, IPSec pass-through, VPN
pass-through
Internet Standards
RFC 826 ARP, RFC 791 IP, RFC 792 ICMP, RFC 768 UDP, RFC
793 TCP, RFC 783 TFTP, RFC 1483 AAL5 Encapsulation, RFC
1661 PPP, RFC 1866 HTML, RFC 2068 HTTP, RFC 2364 PPP
over ATM
Temperature
Operating 0 to 40 °C (32 to 104 °F)
Storage -40 to 70 °C (-40 to 158 °F)
Humidity
5% to 95% (non-condensing)