Allied Telesyn International Corp AT-WA7500 Installation Guide download pdf (Page 16)

Product Description

In other words, the LED is lighted anytime a valid communications

link has been established for the corresponding port. If the LED is

not lighted, check the twisted pair cable to ensure a proper port

connection has been made.

❑ ACTIVITY lamp (green)

— This LED is lighted when packets are being sent or received

through the repeater.

❑ COLLISION lamp (amber)

— The COLLISION LED will flicker to indicate a collision. While

occasional collisions are normal in Ethernet networks, a constantly

illuminated COLLISION LED may indicate that there is a port

with excessive traffic problems.

— Continual flickering of the COLLISION LED may also indicate

excessive frame collisions on a segment. This may be caused by an

overloaded segment, a faulty cable, or a bad connection.

— If this LED is lighted for an extended period of time, it is possible

that there is a problem with the transceiver or cable.

❑ POWER lamp (green)

— This LED lights when power is being received by the repeater from

the AC to DC adapter.

Figure 4 shows the back panel of an AT-MR815T.

Figure 4: AT-MR815T back Panel

On the back panel are eight UTP RJ45 network ports (including Port 8, an

uplink port). It also shows the Direct Current (DC) power receptacle which is

used in conjunction with the TUV-licensed Alternating Current (AC) adapter

which is provided.

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Allied Telesyn International Corp AT-WA7500 Installation Guide Page 16