Introduction
The RocketLinx ES8105/ES8105F series of industrial Ethernet switches provide three
models:
ES8105
supports five 10/100BASE-TX ports
ES8105F-Multi-Mode:
supports four 10/100BASE-TX ports and one
100BASE-FX Ethernet port
ES8105F-Single-Mode:
supports four 10/100BASE-TX ports and one
100BASE-FX Ethernet port
The RocketLinx ES8105 series provides a slim industrial design to save rail space for
compact system requirements. The ES8105 series is enclosed in an industrial-grade
aluminum case with IP30 standard protection. It provides one relay output to alarm
port link failure events, which is enabled and disabled by a DIP switch.
Refer to the Comtrol web site for specification information. For more detailed
installation information, see the
RocketLinx ES8105/ES8105F User Guide
, which is
available at: ftp://ftp.comtrol.com/html/ES8108_docs.htm.
Wiring the Power Inputs
1. Insert the positive and negative wires into the power V+ and V- contacts on the
terminal block connector.
2. Tighten the wire-clamp screws to prevent the wires from being loosened.
Note: The recommended working voltage is 24VDC (18- 32VDC)
or 18VAC (18-27VAC).
Wiring the Relay Output
The relay output alarm contacts are on the terminal block
connector as shown in the figure.
If you insert the wires and enable the DIP switch for the port,
the relay output alarm will detect any port failures, and form
a short circuit. The alarm relay output is Normal Open.
Enabling the Event Alarm
Use this table to set the DIP switch for the relay output alarm.
1
2
3
rt,
m
m.
This is a Class 1 Laser/LED product.
Do not stare into the Laser/LED Beam.
ATTENTION
！
RX
TX
RX
TX
Cable Wiring(SC to SC)
RX A TX B
TX A RX B
A
B
Pin
Status
Description
1-5
On
Enables the port link failure alarm on this port.
Off
Disables the port link failure alarm on this port.
4
NO
123
5
Grounding the ES8105/ES8105F
There is one grounding screw on the bottom side of the ES8105/ES8105F. Loosen the
screw and connect a ground wire from the ES8105/ES8510F to a grounded surface to
ensure safety and prevent noise.
Mounting the Unit
You can mount the ES8105 series on a DIN rail.
Connecting the Ethernet Port
Connect one end of an Ethernet cable into the Ethernet port of the ES8105/ES8105F
and the other end to the attached networking device. The Fast Ethernet ports support
10BASE-T and 100BASE-TX, full- or half-duplex modes.
The Fast Ethernet ports automatically detect the signal from the connected devices to
negotiate the link speed and duplex mode. Auto MDI/MDIX allows you to connect
another switch, hub, or workstation without changing straight-through or crossover
cables. Crossover cables cross-connect the transmit lines at each end to the received
lines at the opposite end.
The Ethernet cables use Pins 1, 2, 3, and 6 of an 8-pin RJ45 connector. The signals of
these pins are converted by the automatic MDIX function, as shown in the following
table:
3 TD+
6 TD-
3 RD+
6 RD-
Switch
Router or PC
1 RD+
2 RD-
1 TD+
2 TD-
Straight-Through Cabling Schematic
3 TD+
6 TD-
3 TD+
6 TD-
Switch
Switch
1 RD+
2 RD-
1 RD+
2 RD-
Crossover Cabling Schematic
Pin
MDIX Signals
MDI Signals
1 RD+
TD+
2 RD-
TD-
3 TD+
RD+
6 TD-
RD-
The LINK/ACT LED is lit when the cable is correctly connected. The LINK/ACT LED is
lit yellow for a 10BASE-TX Ethernet connection or green for a 100BASE-TX Ethernet
connection. Always make sure that the cables between the switches and attached
devices (for example, switch, hub, or workstation) are less than 100 meters (328 feet).
Connecting the Fiber Port (ES8105F)
Connect the fiber port on the ES8105F to another fiber Ethernet device using the
following information.
A wrong connection will cause the fiber port not to work properly.
The fiber connector is a standard connector or square connector (SC).
Note: In the IEEE standard, it suggests the available transmission distance is 2KM for
62.5/125um fiber optical cable in 1310nm wave length. Actually, the attenuation
of Multi-Mode 62.5/125um optical fiber cable is 1.5dBm/km and the maximum link
distance can be up to 4 to 5km.
Mode Cable Type Wavelength
Transmit
Power
(min.)
Transmit
Power
(max.)
Receive
Sensitivity
(max.)
Receive
Sensitivity
(min.)
Min. Launch
Power –Max.
Receive
Sensitivity
Distance(km)
Multi
50/125um
62.5/125um
1310nm -20dBm
-14dBm
-31dBm 0dBm
11dBm
2km
Note (below)
Single 8-10/125um
1310nm
-15dBm
-8dBm
-34dBm
-8dBm
19dBm
30km
