Model ERM-FTT1006
Fault Tolerant Transceiver
to plug into
ERM21C, 21 Slot Chassis
The user can select to make either A or B the primary RJ45 port, by use
of the A/B select switch. The ERM-FTT1006 will only pass data on the
primary port, or on the active port in the case of a cable failure. The
transceiver will automatically return to the primary port when it senses
that this port is passing valid data.
LEDs.
All three ports have their own set of
two LEDs for each of the following:
LINK,
Indicates
that a proper 100BaseTX link has been established at the port. LEDs for both
ports (RJ45 connectors 2 & 3) should be ON during normal opperation.The Link LEDs should be on if all
connections have been made properly, if the cable is intact, and if the device
on the other end of the cable is operational.
ENABLE, Indicates that
the port is the one in use. Only one of the ports should on be on at any given time.
Locating ERM-FTT1006 transceivers.
The ERM-FTT1006 must be used in conjunction with the ERM21C, 21 slot rack-mount chassis, it simply plugs in and the set screw holds it firmly in place. Run a UTP cable from the work-station or network device to the ERM-FTT1006. A second and third UTP cables are then used to connect to another ERM-FTT1006 or a hub, or a switch. These cables can be up to 100 meters (328 ft.) in length. It is advisable to follow the Ethernet specifications for aggregate twisted pair lengths. EtherCom’s ERM12, EFM12, EFM14 or EFM15 TX to FX media converters may be utilized to extend these segments to 2 kilometers, single-mode versions can extend the segments to 15 or 100 kilometers.
When
running cables from an ERM-FTT1006 to a
second ERM-FTT1006 it makes no
difference if port A on the first transceiver is connected to port A or port B
on the second ERM-FTT1006.
The ERM-FTT1006 is fully compatible
with Ethernet V2.0/IEEE 802.3 transceiver specifications for CSMA/CD 100 Mbps
operation.
Switches
The set of four miniature slide switches on the front of the
unit are:
·
Switch 1, marked A - B, Selects
either port A or port B as primary port.
·
Switch 2, marked FT-TCVR
- HUB, (Fault Tolerant Transceiver
- Hub) Lets you set up the operation of the unit for transceiver to
transceiver or transceiver to hub.
UTP Crossover Capability
To
provide maximum installation flexibility, there are three switches located on
the PC Board . These are UTP crossover switches. They eliminates the need for a
specially configured UTP crossover cable. It allows a repeater or a
non-repeater device to be attached to the UTP segment side. This switch should
be toggled in both directions until you can see that the corresponding
LINK LED is illuminated.
Monitoring
of
the unit is simple with the complement of 6 LEDs that display Link and Enable
on each RJ45 connectors.
ERM-FTT1006
TECHNICAL SPECIFICATIONS
|
Network Standards |
Ethernet V2.0/ IEEE
802.3 |
|
|
Speed |
100 Mbps. |
|
|
Half duplex |
Yes |
|
|
Full duplex |
Yes |
|
|
Power |
From ERM21C |
|
|
LEDs |
Total 6 |
Enable & Link
for each RJ45 |
|
Weight |
0.2 lb. |
91.0 g. |
|
Dimensions |
3.36” x 2.14“
x .73” |
(8.84 cm x 5.25 cm
x 2.09 cm) |
|
Environmental |
Operating Temperature Storage Temperature Relative Humidity |
32 to 122F (0 to 50
C) -4 to 140F (-20 to
60 C) 5% to 80%
(non-condensing) |
|
Switches |
3 Cross over - 1
for each RJ45 Connector. (located on PC Board). 2 exterior switches
2 position DIP swith 1 for unit to unit
or for Unit to Hub. 1 for
Priority Segment A/B |
|
|
Connectors |
3 Fully Shielded
RJ45 connectors. |
|
|
Cabling |
UTP Category 5, maximum cable distance 100 meters |
|
|
Regulatory Approvals |
EMI FCC Class A
& CE. |
|
|
Warranty |
15 years |
|
EtherCom Corporation
1409 Fulton Place, Fremont, CA
94539, USA
Tel.
(510) 440 0242 Fax. (510) 659 8296
www.ethercom.com