S&C SpeedNet User manual

S&C SpeedNet™Radio
Instruction Sheet 1072-510
April 25, 2016
© S&C Electric Company 2010-2016, all rights reserved
Section Page Section Page
Introduction
Qualified Persons ..............................2
Read this Instruction Sheet ......................2
Retain this Instruction Sheet......................2
Proper Application..............................2
Regulatory Information ..........................2
Warranty .....................................3
Warranty Qualifications..........................3
Antenna Requirements ..........................4
Safety Information
Understanding Safety-Alert Messages ..............5
Following Safety Instructions .....................5
Replacement Instructions and Labels...............5
Safety Precautions ............................6
Shipping and Handling
Inspection ....................................7
Packing ......................................7
Installation
Before Starting Installation....................... .8
Network Design. .............................. .8
Cable Installation. ............................. .8
Antenna/Cable Installation Requirements. .......... .9
Operation
IP Basics....................................11
Subnet Masking ............................. 12
Private Subnets ..............................12
MAC Address ................................13
Network Example .............................14
Routing Options ..............................15
Using Static Routes ...........................16
Interface Pinouts ..............................18
Table of Contents
Installation and Operation
NOTICE
SpeedNet Radio software and instruction sheets can be downloaded at
sandc.com/support/automation-customer-support-portal.asp If you need assistance,
please contact customerpor[email protected] or phone [phone].

2 S&C Instruction Sheet 1072-510
Qualified Persons WARNING
The equipment covered by this publication must be installed, operated, and maintained by
qualified persons who are knowledgeable in the installation, operation, and maintenance
of radios in electric power distribution equipment, along with the associated hazards. A
qualified person is a radio technician who is qualified to install transmission-power-limited
radio equipment per FCC Part 15 and who is trained and competent in:
• The skills and techniques necessary to distinguish exposed live parts from nonlive
parts of electrical equipment
• The skills and techniques necessary to determine the proper approach distances
corresponding to the voltages to which the qualified person will be exposed
• The proper use of the special precautionary techniques, personal protective equip-
ment, insulating and shielding materials, and insulated tools for working on or near
exposed energized parts of electrical equipment
These instructions are intended only for such qualified persons. They are not intended
to be a substitute for adequate training and experience in safety procedures for this type
of equipment.
Read this
Instruction Sheet NOTICE
Thoroughly and carefully read this instruction sheet before programming, operating, or
maintaining your S&C SpeedNet Radios. Familiarize yourself with the Safety Informa-
tion and Safety Precautions on pages 5 and 6. The latest version is available online in
PDF format at sandc.com/Support/Product-Literature.asp
Proper Application WARNING
The equipment in this publication must be selected for a specific application. The appli-
cation must be within the ratings furnished for the selected equipment.
Retain this
Instruction Sheet
This instruction sheet should be available for reference wherever a SpeedNet Radio is
to be used. Retain this instruction sheet in a location where you can easily retrieve and
refer to it.
Regulatory
Information
This device complies with part 15 of the FCC rules and regulations regarding unlicensed
transmissions. Operation is subject to the following two conditions: (1) This device may
not cause harmful interference, and (2) this device must accept any interference.
This device complies with Industry Canada license exempt RSS standard(s). Operation
is subject to the following two conditions: (1) This device may not cause interference,
and (2) this device must accept any interference, including interference that may cause
undesired operation of the device.
Cet appareil est conforme avec Industrie Canada exempts de licence(s) standard RSS.
Son fonctionnement est soumis aux deux conditions suivantes: (1) ce dispositif ne doit
pas causer d’interférences, et (2) cet appareil doit accepter toute interférence, y compris
celles pouvant causer un mauvais fonctionnement de l’appareil.
FCC Warning
This device must be professionally installed. It is the responsibility of the installer to
ensure that proper antenna and cable combinations are used in order to remain within
FCC Part 15 limits.
The SpeedNet Radio is specifically designed to close the longest possible links. This
goal is accomplished in part by delivering the highest permissible RF output power to
the antenna per the FCC Part 15 Rules. In August 1996, the FCC adopted RF exposure
guidelines that established safety levels for various categories of wireless transceivers.
Introduction

S&C Instruction Sheet 1072-510 3
Those limits are consistent with safety standards previously published by the National
Council on Radiation Protection (NCRP) Report 86, §17.4.1, §17.4.1.1, §17.4.2, and §17.4.3
as well as the American National Standards Institute (ANSI) in §4.1 of “IEEE Standard
for Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic
Fields, 3 kHz to 30 GHz,” ANSI/IEEE C95.1-1992.
The SpeedNet Radio complies with these FCC exposure guidelines when the
following precautions are obeyed:
• One of the exact antennas recommended in this instruction sheet is installed
• The cable run for the selected antenna exceeds the minimum length quoted in this
instruction sheet
• All persons maintain a minimum separation of 12 inches (30.48 cm) from the
SpeedNet antenna
Disconnect the ac/dc input power source from the SpeedNet Radio whenever
repositioning the antenna. You are responsible for taking the necessary steps to ensure
that these guidelines are communicated to all persons that may come near the SpeedNet
Radio antenna.
NOTICE
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to part 15 of the FCC Rules.These limits are designed to provide reason-
able protection against harmful interference in a residential installation. This equipment
generates, uses, and can radiate radio frequency energy and, if not installed and used
in accordance with the instructions, may cause harmful interference to radio communica-
tions. However, there is no guarantee that interference will not occur in a particular instal-
lation. If this equipment does cause harmful interference to radio or television reception,
which can be determined by turning the equipment off and on, the user is encouraged
to try to correct the interference by using one or more of the following measures:
• Reorient or relocate the receiving antenna
• Increase the separation between the equipment and receiver
• Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected
• Consult the dealer or an experienced radio/TV technician for help
CAN ICES-3 (B)/NMB-3(B)
NOTICE
Changes or modifications not expressly approved by S&C Electric Company could void
the user’s authority to operate the equipment.
Warranty The standard warranty contained in S&C’s standard conditions of sale, as set forth in
Price Sheet 150, applies to S&C SpeedNet Radios.
Warranty
Qualifications
Warranty of the SpeedNet Radio is contingent upon the installation, conguration, and
use of the SpeedNet Radio and software in accordance with S&C’s applicable instruction
sheets. This warranty does not apply to major components not of S&C manufacture, such
as batteries, and other communication devices not of S&C manufacture. However, S&C
will assign to immediate purchaser or end user all manufacturers’ warranties that apply
to such major components.
Introduction

4 S&C Instruction Sheet 1072-510
Antenna
Requirements
SpeedNet Radios have been designed to operate with the antennas listed in these bulleted
items having a maximum gain of 3 dBd (5.15 dBi) or 10 dBd (12.15 dBi), respectively,
and an impedance of 50 ohms:
• Omni-directional berglass antenna: Antenex FG9023 or equivalent,
3 dBd (5.15 dBi)
• Uni-directional Yagi antenna: Kathrein TY-900 or equivalent,
10 dBd (12.15 dBi)
To reduce potential radio interference to other users, choose the antenna type and
its gain so the equivalent isotropically radiated power (EIRP) is not more than that
permitted for successful communication.
Introduction

S&C Instruction Sheet 1072-510 5
Understanding
Safety-Alert Messages
Several types of safety-alert messages may appear throughout this instruction sheet as
well as on labels attached to the SpeedNet Radio. Familiarize yourself with these types
of messages and the importance of these various signal words:
DANGER
“DANGER” identifies the most serious and immediate hazards that will likely result in
serious personal injury or death if instructions, including recommended precautions, are
not followed.
WARNING
“WARNING” identifies hazards or unsafe practices that can result in serious personal
injury or death if instructions, including recommended precautions, are not followed.
CAUTION
“CAUTION” identifies hazards or unsafe practices that can result in minor personal
injury if instructions, including recommended precautions, are not followed.
NOTICE
“NOTICE”identifies important procedures or requirements that can result in product or
property damage if instructions are not followed.
Following Safety
Instructions
If you do not understand any portion of this instruction sheet and need assistance,
contact your nearest S&C Sales Ofce or S&C Authorized Distributor. Their telephone
numbers are listed on S&C’s website sandc.com. Or call S&C Headquarters at
[phone]; in Canada, call S&C Electric Canada Ltd. at [phone].
NOTICE
Read this instruction sheet thoroughly and
carefully before installing or operating your
S&C SpeedNet Radio.
Replacement
Instructions and
Labels
If you need additional copies of this instruction sheet, contact your nearest S&C Sales
Ofce, S&C Authorized Distributor, S&C Headquarters, or S&C Electric Canada Ltd.
It is important that any missing, damaged, or faded labels on the equipment be replaced
immediately. Replacement labels are available by contacting your nearest S&C Sales
Office, S&C Authorized Distributor, S&C Headquarters, or S&C Electric Canada Ltd.
Safety Information

6 S&C Instruction Sheet 1072-510
DANGER
SpeedNet Radios operate between +9 and +36 Vdc. Failure to observe the
precautions below will result in serious personal injury or death.
Some of these precautions may differ from your company’s operating procedures and
rules. Where a discrepancy exists, follow your company’s operating procedures and rules.
1. QUALIFIED PERSONS. Access to an SpeedNet Radio
must be restricted only to qualified persons.See “Qualified
Persons” on page 2.
2. SAFETY PROCEDURES. Always follow safe operating
procedures and rules.
3. PERSONAL PROTECTIVE EQUIPMENT. Always use
suitable protective equipment such as rubber gloves,
rubber mats, hard hats, safety glasses, and flash
clothing, in accordance with safe operating procedures
and rules.
4. SAFETY LABELS. Do not remove or obscure any of
the “DANGER,” “WARNING,” “CAUTION,” or “NOTICE”
labels.
5. SAFE DISTANCE.
• All persons should maintain a minimum separation of
12 inches (30.48 cm) for the SpeedNet antenna.
• Disconnect the ac/dc input power source from the
SpeedNet Radio whenever configuring or reposition-
ing the antenna.
9. MAINTAINING PROPER CLEARANCE. Always maintain
proper clearance from energized components.
Safety Precautions

S&C Instruction Sheet 1072-510 7
Shipping and Handling
Inspection Examine the shipment for external evidence of damage as soon after receipt as possible,
preferably before removal from the carrier’s conveyance. Check the bill of lading to make
sure that all shipping skids, crates, cartons, and containers listed thereon are present.
If there is visible loss and/or damage:
1. Notify the delivering carrier immediately.
2. Ask for a carrier inspection.
3. Note condition of shipment on all copies of the delivery receipt.
4. File a claim with the carrier.
If concealed damaged is discovered:
1. Notify the delivering carrier within 15 days of receipt of shipment.
2. Ask for a carrier inspection.
3. File a claim with the carrier.
Also notify S&C Electric Company in all instances of loss and/or damage.
Packing A SpeedNet Radio shipment includes the following items:
1. SpeedNet Radio
2. Power cord
3. Antennas and other accessories, as applicable

8 S&C Instruction Sheet 1072-510
Installation
Before Starting
Installation
Choose a location where the SpeedNet Radio can be securely mounted.
NOTICE
For remote antenna installations, where the antenna is not mounted directly on the
control enclosure, S&C recommends installing lightning protection.
Network Design SpeedNet Radios serve as a communication end point for SCADA devices. They can
connect to a SpeedNet Radio mesh network, and they can be installed in a variety
of network congurations. Plan your network in advance, and develop a logical IP
addressing scheme for your particular application. Depending on your network type,
several factors may inuence your design:
• Point-to-point vs. end-point within a mesh
• A stand-alone network connection
When network topology has been determined, the SpeedNet Radios can be configured
appropriately.
Cable Installation Cables should be connected in the following order before the radio can be operational:
(a) Connect the antenna to SpeedNet Radio.
(b) Connect the Ethernet cable to SpeedNet Radio and PC used for conguration.
(c) Connect the power supply to the SpeedNet Radio.
NOTICE
Make sure the SMA connector at the back of the radio, used to connect the antenna
cable, is not loose. An additional small pliers and a wrench may be needed to hold
the nut down to the radio when the SMA connector is being tightened. Use of an SMA
torque wrench is advised.

S&C Instruction Sheet 1072-510 9
Installation
Antenna/Cable
Installation
Requirements
Antennas for SpeedNet Radios must be installed by a qualied radio technician to comply
with FCC Part 15 radiated power limits. Only antennas supplied by S&C Electric Company
may be used with the SpeedNet Radios.
The FCC mandates that Effective Isotropic Radiated Power (EIRP) may not
exceed +36 dBm. This is equivalent to a radio running at full output power (1 watt
+30 dBm) with a +6 dBi antenna. The antenna cable must have sufficient loss to
bring the EIRP below +36 dBm if a higher gain antenna is used. For example, using
a +8 dBi antenna with a radio transmitting at full power would result in an EIRP
of +38 dBm. In this situation, the antenna cable must provide at least 2 dB loss
in order to bring the EIRP into compliance. SpeedNet Radios have configurable
transmit power that can be selected using the SpeedNet Radio client tool or by using
the IntelliTeam CNMS Communication Network Management System. Settings of
+30dBm (default), +25 dBm, and +10 dBm are available. Any confirmed decrease in
output power should be considered when calculating ERIP.
The following table shows the amount of loss incurred with several common antenna
cables.
Table 1. Antenna Cable Loss
Cable Type Loss per 100 Feet of Cable
LMR-400 3.9 dB
LMR-600 2.5 dB
LMR-900 1.7 dB
Table 2. Antenna Cable Loss Examples with LMR-400 Cable①
Antenna Gain Length/Loss ERP
+8.2 dBi 60 feet/2.3 dB loss +36.0 dBm
+10.2 dBi 110 feet/4.3 dB loss +36.0 dBm
+12.1 dBi 160 feet/6.2 dB loss +36.0 dBm
①Assuming 1-watt output power from the SpeedNet Radio.

10 S&C Instruction Sheet 1072-510
Installation
Table 3. Antenna/Cable Loss Examples with LMR-600 Cable①
Antenna Gain Length/Loss ERP
+8.2 dBi 90 feet/2.3 dB loss +36.0 dBm
+10.2 dBi 170 feet/4.3 dB loss +36.0 dBm
+12.1 dBi 245 feet/6.1 dB loss +36.0 dBm
①Assuming 1-watt output power from the SpeedNet Radio.
Table 4. Antenna Cable Loss Examples with LMR-900 Cable①
Antenna Gain Length/Loss ERP
+8.2 dBi 135 feet/2.3 dB loss +35.9 dBm
+10.2 dBi 250 feet/4.3 dB loss +36.0 dBm
+12.1 dBi 310 feet/5.3 dB loss +35.9 dBm
①Assuming 1-watt output power from the SpeedNet Radio.
If you are using a different type of cable, verify cable loss before installation.
Table 5. Attenuation Chart
Nominal Attenuation Frequency in MHz dB/100ft
Cable Type 10MHz 30MHz 50MHz 150MHz 220MHz 450MHz 900MHz 1.2GHz 2.4GHz
100 Series 2.3 3.9 5.1 8.9 10.9 15.8 22.8 26.7 38.9
195 Series 1. 1 2.0 2.5 4.4 5.4 7. 8 11. 1 12.9 18.6
240 Series 0.8 1. 3 1. 7 3.0 3.7 5.3 7. 6 8.8 12.7
400 Series 0.4 0.7 0.9 1. 5 1. 9 2.7 3.9 4.5 6.6
600 Series 0.2 0.4 0.5 1. 0 1. 2 1. 7 2.5 2.9 4.3
LMR-400-UF 0.5 0.8 1. 1 1. 8 2.2 3.3 4.7 5.5 7. 9
RG142/U
RG213/U 0.6 1. 2 1. 5 2.8 x 5.2 7. 3 x x
RG214/U 0.6 0.9 1. 3 2.3 x 4.5 7. 3 x x
RG223/U 1. 2 2.0 2.8 5.0 x 9.8 13.4 x x
RG316/U
RG393/U
RG58A/U 1. 5 2.6 3.3 6.8 x 12.6 21.0 x x
RG8/U
(CXP1318FX)
0.5 0.8 1. 1 1. 8 2.2 3.3 4.7 5.5 7. 9
RG8X-Mini 1. 0 2.0 2.3 4.7 x 8.6 13.0 x x

S&C Instruction Sheet 1072-510 11
Operation
IP Basics SpeedNet Radios use Internet Protocol (IP) version 4, and all references to IP addresses
in these installation instructions refer to IPv4 addresses. An IP address is the unique
identier for a node (host connection) on an IP network. The IP address is a 32-bit
binary number, usually shown as four decimal values separated by decimal points. Each
value represents 8 bits in the range 0 to 255 (known as octets), and this is called “dotted
decimal” notation.
For example: 172.26.220.200 can be viewed in binary form:
172 .26 .220 .200
10 1 0 11 00.000 11 0 1 0.11 0 11100.11 00 1 000
Every IP address consists of two parts that identify the network and the node. The
address class and subnet mask determine which part belongs to the network address
and which part belongs to the node address.
There are five address classes. You can determine the IP address class by examining
the first four bits of the IP address:
• Class A addresses begin with 0xxx, or 1 to 126 decimal.
• Class B addresses begin with 10xx, or 128 to 191 decimal.
• Class C addresses begin with 110x, or 192 to 223 decimal.
• Class D addresses begin with 1110, or 224 to 239 decimal.
• Class E addresses begin with 1111, or 240 to 254 decimal.
Addresses beginning with 01111111, or 127 decimal, are reserved for loop-back and
internal testing on a local machine. You can test this by pinging 127.0.0.1, which points
to your local machine. Class D addresses are reserved for multicasting, and Class E
addresses are reserved for future use and should not be used for a host address.
This is how the class determines, by default, which part of the IP address belongs to
the network (N) and which part belongs to the node (n).
• Class A–NNNNNNNN.nnnnnnnn.nnnnnnnn.nnnnnnnn
• Class B–NNNNNNNN.NNNNNNNN.nnnnnnnn.nnnnnnnn
• Class C–NNNNNNNN.NNNNNNNN.NNNNNNNN.nnnnnnnn
In the example, 172.26.220.200 is a Class B address, so by default the network
part of the address (known as the network address) is defined by the first two octets
(172.26. x.x) and the node part is defined by the last 2 octets (x.x.220.200).
To specify the network address in an IP address, the node section is entered as zeros. In
our example, 172.26.0.0 specifies the network address for 172.26.220.200. When the node
section is set to all “1”s, it specifies a broadcast that is sent to all nodes on the network
and is indicated: 172.26.255.255, which is the broadcast address for our example. Note
that this is true for all classes, regardless of the length of the node section.

12 S&C Instruction Sheet 1072-510
Operation
Subnet Masking Applying a subnet mask to an IP address allows you to identify the network and node
parts of the address. The network bits are represented by the “1”s in the mask, and
the node bits are represented by the “0”s. Performing a bitwise logical AND operation
between the IP address and the subnet mask results in the network address or number.
The network address is also called the subnet.
For example, using our test IP address and the default Class B subnet mask, we get:
10101100.00011010.11110000.11001000 172.26.240.200 Class B IP Address
11111111.11111111.00000000.00000000 255.255.000.000 Default Class B Subnet Mask
10101100.00011010.00000000.00000000 172.26.000.000 Network Address
Default subnet masks:
• Class A 255.0.0.0–11111111.00000000.00000000.00000000
• Class B 255.255.0.0–11111111.11111111.00000000.00000000
• Class C 255.255.255.0–11111111.11111111.11111111.00000000
Private Subnets Three IP network addresses are reserved for private networks. The addresses are
10.0.0.0, Subnet Mask 255.0.0.0; 172.16.0.0, Subnet Mask 255.240.0.0; and 192.168.0.0,
Subnet Mask 255.255.0.0. These addresses are also notated 10.0.0.0/8, 172.16.0.0/12,
and 192.168.0.0/16. They can be used by anyone setting up internal IP networks, such
as a lab or home LAN behind a NAT or proxy server or a router. It is always safe to use
these because routers on the Internet by default will never forward packets coming
from these addresses.
Subnetting an IP network can be done for a variety of reasons, including organiza-
tion, use of different physical media (such as Ethernet, FDDI, WAN, etc.), preservation
of address space, and security. The most common reason is to control network traffic.
In a traditional unswitched Ethernet network, all nodes on a segment see all the pack-
ets transmitted by all the other nodes on that segment. Performance can be adversely
affected under heavy traffic loads caused by collisions and the resulting retransmissions.
A router is used to connect IP networks to minimize the amount of traffic each segment
must receive.

S&C Instruction Sheet 1072-510 13
Operation
MAC Address In networking, the Media Access Control (MAC) address is a unique identier programmed
into each network device. This number acts like a name for the device, and all SpeedNet
Radios have unique MAC addresses. Some devices have user-congurable MAC addresses,
but the SpeedNet Radio MAC address is congured at the factory and cannot be changed.
Most protocols use MAC addresses that are globally unique, but not all protocols use
MAC addresses or require that they be unique.
Unlike IP addresses, MAC addresses do not have node and network sections, and a
receiving node cannot determine any network information from the MAC address. The
length of a MAC address is 6 bytes, and an IP address is 4 bytes long. Therefore, the MAC
address cannot be represented using an IP address. So an IP address must be mapped
to its corresponding MAC address. Address Resolution Protocol (ARP) is used to locate
a specific MAC address. ARP broadcasts an ARP request packet, which contains the
source MAC address, the source IP address, and the destination IP address. Each node
in the local network receives this packet. A node that has the specified destination IP
address returns an ARP reply packet containing its MAC address to the originating host.
On broadcast networks, such as Ethernet, the MAC address allows each node to be
uniquely identified and frames to be marked for specific nodes. It thus forms the basis
of most of the layer 2 networking upon which higher OSI layer protocols are built to
produce complex functioning networks. See Table 6.
Table 6. OSI model
Host lED
(Intelligent Electronic
Device) Layers
Data Unit Layer Function
Data
Application Network process to application.
IntelliRupter/IntelliTeam
®Software
Presentation Data representation and encryption
Session Interhost communication
Segments Transport End-to-end connections and reliability (UDP/TCP)
Media SpeedNet
Layers
Packets Network Path determination and logical addressing (IP)
Frames Data Link Physical addressing (MAC and LLC)
Bits Physical Media, wireless, fiber optics, and wire

14 S&C Instruction Sheet 1072-510
Operation
Network Example Use of private IP addresses is strongly recommended when conguring a SpeedNet Radio
network. The following example of a SpeedNet Radio network uses several private IP
subnets from the 192.168.0.0 block of private addresses.
The SpeedNet Radio network, depicted in Figure 1, contains three Ethernet seg-
ments. The first segment uses the 192.168.200.0 Class C subnet, encompassing a range
of addresses from 192.168.200.1 to 192.168.200.254. The second segment uses the
192.168.201.0 Class C subnet, encompassing a range of addresses from 192.168.201.1 to
192.168.201.254. The third segment uses the 192.168.202.0 Class C subnet, encompassing
a range of addresses from 192.168.202.1 to 192.168.202.254. All three radios share the
192.168.203.0 Class C subnet for their wireless interfaces. It is over this common subnet
that traffic is routed between Ethernet segments.
Once the individual data networks are established, plan the IP addressing scheme.
In Figure 1, each SpeedNet Radio host ID is 1, and each automatic switch control host
ID is 2. Following a numbering scheme such as this will make it easier to keep track of
which IP addresses are used for each device.
The SCADA network in this example uses the 192.168.203.0 subnet. This subnet is
different from the subnets used for the Ethernet segments. The wireless interface of
the SpeedNet Radio from Subnet 1 is assigned an address of 192.168.203.1. The wireless
interface of the SpeedNet Radio from Subnet 2 is assigned an address of 192.168.203.2.
The wireless interface of the SpeedNet Radio from Subnet 3 is assigned an address of
192.168.203.3.
You may find it helpful to draw a diagram as a planning aid and reference guide when
designing your SCADA network.
SpeedNet 1
192.168.203.1
SpeedNet 2
192.168.203.2
SpeedNet 3
192.168.203.3
192.168.200.1 192.168.201.1 192.168.202.1
192.168.200.2 192.168.201.2 192.168.202.2
Radio Network
Figure 1. Multi-network use of SpeedNet Radios.

S&C Instruction Sheet 1072-510 15
Figure 2. A wireless network using SpeedNet Radios with AODV.
Operation
Ethernet
SpeedNet 1
Wireless Interface: 192.168.4.1
Ethernet Interface: 192.168.1.1
IP Address: 192.168.1.2
Default Gateway: 192.168.1.1
SpeedNet 2
Wireless Interface: 192.168.4.2
Ethernet Interface: 192.168.2.1
IP Address: 192.168.2.2
Default Gateway: 192.168.2.1
IP Address: 192.168.3.2
Default Gateway: 192.168.3.1
IP Address: 192.168.3.3
Default Gateway: 192.168.3.1
SpeedNet 3
Wireless Interface: 192.168.4.3
Ethernet Interface: 192.168.3.1

16 S&C Instruction Sheet 1072-510
Operation
Routing Options As a router, SpeedNet Radios provide a wireless connection between two or more
separate Ethernet subnets. Data are then routed between the Ethernet subnets. Route
information can be entered manually, or it can be processed automatically by AODV.
See Figure 2 on page 15 for an example of a wireless network using SpeedNet Radios
with AODV.
The type of network you are designing will help determine the best routing mode
to use. If the network consists of stationary SpeedNet Radios that are communicating
either point-to-point or point-to-multipoint, choose “Off”’ for ad-hoc routing mode. This
allows you to insert static routes for each SpeedNet Radio and its connected network. If
route redundancy is not required, “Off” is likely the best ad-hoc routing mode to choose.
Note that if static routing is selected (ad-hoc routing mode is “Off”), then all routes that
a given radio might need must be specified as static routes. The radios do not support a
mixture of static routes and AODV routing. See Figure 3.
If the network consists of meshed SpeedNet Radios, choose “AODV,” the ad-hoc
routing mode. This mode allows the SpeedNet Radios to automatically find their
neighbors and quickly and dynamically update the route tables as the network
topology changes. For environments where routes are required to change dynamically
or where enhanced reliability through redundancy is required, AODV is typically the
best ad-hoc routing mode to choose.
Using Static Routes Figure 3 is an example of a point-to-point SpeedNet Radio network. In this example,
Subnet 1 has been assigned the 192.168.1.0 Class C subnet, while Subnet 2 has been
assigned the 192.168.2.0 Class C subnet. For the wireless network common between the
two radios, the 192.168.3.0 Class C subnet has been assigned.
SpeedNet 1
Ethernet Interface: 192.168.1.1
Wireless Interface: 192.168.3.1
IP Address: 192.168.1.2
SpeedNet 2
Ethernet Interface: 192.168.2.1
Wireless Interface: 192.168.3.2
IP Address: 192.168.2.2
Figure 3. A wireless network using SpeedNet Radios with static routes.

S&C Instruction Sheet 1072-510 17
Operation
To route traffic between subnets, several things must happen. First, all hosts on a given
subnet must use the attached SpeedNet Radio as their default gateway. As an alternative,
manual routes can be entered in each host’s routing table. Hosts from Subnet 1 will list
192.168.1.1 as their default gateway. If AODV is disabled, and static routing is used, it is
necessary to add static routes in each SpeedNet Radio. The SpeedNet Radio from Subnet
1 must have a static route to Subnet 2, using the SpeedNet Radio from Subnet 2 as the
gateway. The route should be set up like this:
192.168.2.0 255.255.255.0 192.168.3.2
Network Netmask Gateway
All hosts from Subnet 2 should use 192.168.2.1 as their default gateway. As an alterna-
tive, manual routes can be entered in each host’s routing table. The SpeedNet Radio from
Subnet 2 must have a static route to Subnet 1, using the SpeedNet Radio from Subnet 1
as the gateway. This route should be set up like this:
192.168.1.0 255.255.255.0 192.168.3.1
Network Netmask Gateway
NOTICE
It is important to understand that there are actually three subnets in this example:
Subnet 1, Subnet 2, and the radio network.
It is also important that all radio wireless IP addresses should be on the same subnet,
while all radio Ethernet IP addresses should be on different, non-overlapping subnets.

18 S&C Instruction Sheet 1072-510
Operation
Interface Pinouts The RS-232 Interface of the SpeedNet Radio is congured as data communications
equipment. See Figure 4.
6 7 8 9
1 2 3 4 5
Pin Function Description
1 NC No Connection
2 TXD RS-232 Transmit
3 RXD RS-232 Receive
4 NC No Connection
5 GND Signal Ground
6 NC No Connection
7 CTS Clear to Send
8RTS Request to Send
9 NC No Connection
Figure 4. SpeedNet Radio RS-232 interface pinout.
The SpeedNet Radio Ethernet interface uses an RJ-45 connector with the pinout
shown in Figure 5. The Ethernet port is on the rear panel of the SpeedNet Radio. It is
auto-sensing for assignment of transmit and receive lines (no crossover cables required)
and auto-negotiates for 10-Mbps or 100-Mbps data rate as required by the connected
device.
1 8
Pin Function Description
1 TXD+ Transmit
2 TXD- Transmit
3 RXD+ Receive
4 NC No Connection
5 NC No Connection
6 RXD- Receive
7 NC No Connection
8 NC No Connection
Figure 5. SpeedNet Radio Ethernet RJ-45 interface pinout.