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

Upstream

Maximum Distance between

 

 

Rate (Mbps)

Rate (Mbps)

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)

1.The payload rate is about 9% less than the line rate due to framing

overhead.

ëNote 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.

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