Specifications | 244
Interface specifications
Ethernet interface
General
Interface
RJ-45 * 4 (Integrated 4-port switch)
Cabling
CAT-5 UTP, supports auto MDIX (Standard Ethernet)
Maximum line length
100 metres on cat-5 or better
Bandwidth allocation
n x 8 kbit/s up to max available.
n x 64 kbit/s is recommended for higher bandwidth terminals
500 kHz, 32 QAM.
Maximum is 16384 kbit/s (or limited by radio bandwidth).
Maximum packet size
‘Standard’ Ethernet packets: max 1518 octets
Tagged and double-tagged packets: max 1526 octets
Data buffer size
Up to 256 frames
Address table size
2048 IP addresses
WAN protocol
HDLC
Ethernet mode
10Base-T or 100Base-TX
Full duplex or half duplex
(Auto-negotiating and auto-sensing)
VLAN tagging
IEEE 802.1Q VLAN tagging
QoS IEEE
802.1p
Ipv4 TOS DiffServ
Ipv6 traffic class
Spanning Tree
Forwards 802.1D Spanning Tree Protocol packets up to 1526
bytes in length.
Diagnostics
Hardware
Green LED (solid): Link OK
Green LED (flashing): Data traffic
QJET Quad E1 / T1 interface
General
Standard
G.703 and G.704
Interface RJ-45
Line termination impedance
E1 120
Ω
balanced
T1 100
Ω
balanced
Maximum line length
E1 typically up to 1.7 km (43 dB of loss at 1024 kHz in
standard 0.4 mm
2
cable).
T1 typically up to 1.7 km (36 dB of loss at 772 kHz in standard
0.4 mm
2
cable).
Bandwidth allocation
Framed E1s require a link bandwidth of 2048 kbit/s.
Unframed E1s require a link bandwidth of 2088 kbit/s.
Framed T1s require a link bandwidth of 1544 kbit/s.
Unframed T1s require a link bandwidth of 1584 kbit/s.
Line code
E1 HDB3 or AMI
T1 B8ZS or AMI
Tx Waveform Shaper
(T1 only)
0 ~ 133 ft
133 ~ 266 ft
266 ~ 399 ft
399 ~ 533 ft
533 ~ 655 ft
Stability ±50
ppm
Jitter performance
G.823 (sections 2 & 3)
Diagnostics
Hardware
Green LED: Link OK
Yellow LED: Loss of signal
Содержание Aprisa XE
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