ET-18MG-MIL_manual.r04.doc
Page 3 of 12
Last Revised: 17-Dec-13
Section 1
General Specifications
Overview
This manual will help you install and maintain the switch. Installation of these switches
will enable the user to manage the network by monitoring/gathering network data, allow
for browser or telnet configuration, increase network performance, and much more.
Note:
This manual only covers the installation and wiring of these switches. Refer
to the separate
Software User Manual
for details on configuring and using any of
the management functions such as SNMP, RSTP, IGMP, port mirroring, etc.
Basic
Operation
Unlike an Ethernet hub that broadcasts all messages out all ports, these industrial Ethernet
switches will intelligently route Ethernet messages only out the appropriate port. The
major benefits of this are increased bandwidth and speed, reduction or elimination of
message collisions, and deterministic performance when tied with real-time systems.
The switch can support 10BaseT (10 Mbps) or 100BaseT (100 Mbps) on 16 ports. Each
of these ports independently auto-sense the speed and duplex. The remaining two ports are
Gigabit (1000 Mbps) for copper or fiber connections depending on the model.
Performance
Specs
The switch has the following performance specifications.
Performance Specifications
General
18 Ethernet ports
Ethernet switch type
Managed (unmanaged optional)
Ethernet protocols supported
All IEEE 802.3
10/100 Ethernet ports 1-16
receptacle
MIL-DTL-38999 Series III w/ 22D socket contacts
(insert style 35)
Ethernet speed
(10/100BaseTX)
Auto-negotiation
(10 or 100 Mbps)
Ethernet MDI/MDIX & TD/RD
Auto-crossover and auto-polarity
Ethernet isolation
1500 VRMS 1 minute
Gigabit Ethernet ports 17-18
receptacle
See section 3
Fiber optic port speed
1000 Mbps (Gigabit)
Fiber optic port wavelength
850, 1300 or 1550 nm center
Fiber multimode (mm) typical
50 or 62.5/125 um (SC or ST)
Fiber singlemode (sm) typical
9 or 10/125 um (SC or ST)
Fiber max. distance (full
duplex) (see web for details)
0.5 km (mm), 10 (sm) or 30+ km (long haul - contact Red
Lion)
Typ. latency for 100 Mbps
5us + frame time
Varies on load
Full or half duplex operation
Full for fiber; Auto/Config. for 10/100
MAC addresses supported
2048
Memory bandwidth
3.2 Gbps
“OK” Alarm Output
For power & operational status
Voltage
Same as switch input voltage
Maximum current output
0.5 Amp
Management Port
RS232 (TD, RD and GND)
Management port receptacle
MIL-DTL-38999 Series III w/ 22D socket contacts
(insert style 35)
Power Input
PoE (PD) or dual power inputs
Input voltage (on power port)
10-30 VDC on power connector
Input power (typical)
<15 W with all ports active
Power input receptacle
MIL-DTL-38999 Series III w/ size 20 pin contacts
(insert style 35 or 98) (See section 3)
Redundant power input pins
Automatic switchover to backup
Automatic power savings
When ports are inactive
