4
LPS1000A
24-hour Technical Support: 1-724-746-5500
Product Description & Features -- Continued
Product features -- continued
Over Current Protection/Under Current Detection
(IEEE802.3af)
4
1
Media
Converter A
Media
Converter B
Near-End
Device
Far-End
Device
original fault
on the copper link
media converter B
disables the copper link
media converter A
disables the fiber TX link
3
2
media converter B
loses the fiber RX link
Link Pass-Through
The Link Pass-Through allows the media converter to monitor both the fiber and
copper RX
(receive)
ports for loss of signal. In the event of a loss of an RX signal
on one media port, the media converter will automatically disable the TX
(
transmit)
signal of the other media port, thus, “passing through” the link loss.
The far-end device is automatically notified of the link loss, which prevents the
loss of valuable data unknowingly transmitted over an invalid link. See diagram
below.
Power Detect Reset
With the PSE/LTP switch enabled, a loss of the Fiber RX link will disable PSE power
output on the UTP power for 2 seconds to allow the remote device to reinitialize.
Fiber redundancy
The LPS1000A-2SFP media converter has two fiber SFP ports: one can be configured
as the primary port and one as the secondary port. When redundancy is enabled
(SW14
Down, model LPS1000A-2SFP)
, any fault on the primary port results in the secondary
port becoming operational. When redundancy is disabled, the device operates as a
three-port switch.
Full-Duplex network
In a full-duplex network, maximum cable lengths are determined by the type of cables
that are used.
(The 512-Bit Rule does not apply in a full-duplex network.)
Half-Duplex network
(512-Bit Rule)
In a half-duplex network, the maximum cable lengths are determined by the round trip
delay limitations of each Fast Ethernet collision domain.
(A collision domain is the
longest path between any two terminal devices, e.g., a terminal, switch, router, etc.)
The 512-Bit Rule determines the maximum length of cable permitted by calculating
the round-trip delay in bit-times (BT) of a particular collision domain. If the result is
less than or equal to 512 BT, the path is good.
24-hour Technical Support: 1-724-746-5500
5
Enclosure Mounting
Optional vertical wall mounting
CAUTION: Make sure that the hardware used for wall mounting can support the
weight of the LPS1000A once mounted. Failure to observe this caution could result in
damage to the equipment.
1. Orient the device as shown in the illustration below.
2. Remove the two #4 Philips head screws securing the cover to the device.
3. Position one side of the bracket assembly as shown in the illustration and
mount it to the device, using the the two #4 Philips head screws.
4. Do Steps 1 thru 3 to mount the bracket to the other side of the device.
5. Position the device on the mounting surface.
6. Mount the device to the wall.
WMBL
Wall-Mount Bracket
Chassis Cover
Screws (Qty 4)