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Stack ports
There are two stack ports on the front panel. One is IN and the other is OUT. When
stacked, the IN port should connect to the other switch’s OUT port and the OUT port
should connect to other switch’s IN out. You can just use normal Cat 5 or better cable with
RJ-45 connector to stack. Only straight-through UTP/STP cable can be used. There is no
Duplex Mode issue and the maximum distance between first and last switch is 800m.
SWITCH ID
Each switch on a stack must have a unique switch ID. There are eight degrees (0~7) in
the rotary switch. The switch with least switch ID will become master switch and the
others become slave. If master switch is fail or disconnected to the switch by stack port,
the switch with least switch ID will become master.
Every device in the management stack should have a unique “Switch ID”. In the
meanwhile, a “Switch ID” which has been using by a device, reused by another, the
management stack will fail.
Reset button
At the middle of front panel, the reset button is designed for reboot the switch without turn
off and on the power.
VDSL ports
There are 16 VDSL ports within 1 RJ-21 connector on the front panel.
The VDSL supports 5 selective transmission modes that operate in different band
allocation and result in different upstream and downstream bandwidth. Due to different
telephone line quality, cross talk or extension distance may affect actual achievable
speed; you can configure individual port in built-in management interface for optimized
connectivity.
The following is the summary table of transmission modes, bandwidth and distance
extensibility tested for AWG 24 (0.5mm) twisted-pair without noise and cross talk.
Profile Name Profile Type
Downstream
Rate (Mbps)
Upstream
Rate (Mbps)
Maximum Distance between
the CO Port and the CPE
ANSI Public 15.17 4.27 4100 ft (1.25km)
ETSI Public 11.38 4.27 4100 ft (1.25km)
VE-5 Private 5.69 5.69 5000 ft (1.5km)
VE-10 (default)
Private 11.38 11.38 4100 ft (1.25km)
VE-15 Private 15.17 17.06 3500 ft (1.05km)
ëNote
1. The pay
load rate is about 9% less than the line rate due to framing
overhead.
2.
AWG 26 (0.4mm) cable can also be used but the distance is 20% to 40%
shorter than above table.
3.
Each terminated bridge tap can reduce the VDSL link distance by 90m.
The quality of the
cable, the size of the cable bundles, and the cross talk
within the bundle, can also affect other overall reach.