DPS Telecom NetGuardian 420 Instructions for use

HARDWARE USER MANUAL
NetGuardian 420
November 13, 2019 D-UM-NG420
Visit our website at www.dpstelecom.com for the latest PDF manual and FAQs.
Firmware Version 5.2G

© 2019 DPS Telecom
This document contains proprietary information which is protected by copyright. All rights are reserved. No part of this
document may be photocopied without prior written consent of DPS Telecom.
All software and manuals are copyrighted by DPS Telecom. Said software and manuals may not be reproduced, copied,
transmitted or used to make a derivative work, by either mechanical, electronic or any other means in whole or in part, without
prior written consent fromDPS Telecom, except as required by United States copyright laws.
The material in this manual is for information purposes and is subject to change without notice. DPS Telecomshallnot be
liable for errors contained herein or consequential damages in connection with the furnishing, performance, or use of this
manual.
Notice
Revision History
November 13, 2019
January 4, 2018
December 20, 2017
December 11, 2015
October 27, 2015
Septemeber 8, 2015
August 4, 2015
May 12, 2015
January 26, 2015
January 28, 2014
January 10, 2014
December 3, 2013
October 28, 2013
June 13, 2013
April 9, 2013
March 27, 2013
June 25, 2012
June 19, 2012
March 2, 2012
March 9, 2011
March 3, 2011
September 21, 2010
August 19, 2010
Updated Power Connection section
Note about Discrete alarms added to Specs
Added Build Options for Dual NICand SFPFiber Port
DNP- Update
Display mapping updates
DNP- Update
DNP- Points list
DNP- DWire Updates
Added DNP3 Section
Changed SSHscreenshot and verbage
Edited TTY and SSHlogin information
Removed PPPConfiguration
Added CellGuard Option
Added SCANprotocol support
Added D-Wire support
Added SSHvia PuTTY Information
Added Hinged Pluggable Back Paneland Switch TestBox to Optional Accessories
Updated new web interface and build options. Division of Hardware and Web
into separate manuals - FW version 1.1A and after
Edited relay information
Included Web Interface section
Included information about the wire wrap attachment option
Updated Shipping and Accessories Lists
Misc. user manual edits.

Contents
Visit our website at www.dpstelecom.com for the latest PDF manual and FAQs
NetGuardian 420 Overview1 1
Shipping List2 2
Optional Accessories3 3
Specifications4 4
Hardware Installation5 5
Tools Needed5.1 5
Mounting5.2 5
Power Connection5.3 6
LAN Connection5.4 7
Telco Connection5.5 8
Alarm and Control Relay Connections5.6 9
Alarm and Control Relay Connector Pinout Table5.6.1 9
Discrete Inputs/Control Relay Pinout5.6.2 10
Optional Wire Wrap Back Panel5.6.3 11
Integrated Temperature and Battery Sensor (Optional)5.6.4 12
Discrete Alarms5.7 13
Data Ports5.8 14
Optional 66 Block Connector5.9 15
Controls5.10 16
LCD Display6 17
Alarm and Control Status Messages6.1 17
LCD Command Menu6.2 18
Sound off6.2.1 18
Reboot6.2.2 19
Run Config6.2.3 19
Contrast6.2.4 19
Alarm Speaker7 20
Front Panel LEDs8 21
Back Panel LEDs9 22
Configuring the NetGuardian10 22
RADIUS Authentication10.1 22
Connecting to the NetGuardian11 24
... via Craft Port11.1 24
... via LAN11.2 25
TTY Interface12 26
Unit Configuration12.1 26

Ethernet Port Setup12.1.1 26
Edit PPP Port12.1.2 28
Tune 202 Modem12.1.3 29
RADIUS Configuration12.1.4 30
New! - TTY Command Mode12.1.5 31
Monitoring12.2 34
Monitoring the NetGuardian12.2.1 34
12.2.1.1 Monitoring Base Alarms 34
12.2.1.2 Monitoring Ping Targets 35
12.2.1.3 Monitoring and Operating Relays (Controls) 35
12.2.1.4 Monitoring Analogs 36
12.2.1.5 Monitoring System Alarms 37
12.2.1.6 Monitoring Data Port Activity 38
12.2.1.7 Monitoring the Accumulation Timer 38
Viewing Live Target Pings12.2.2 39
Proxy Menu12.2.3 40
Event Logging12.2.4 40
Backing Up NetGuardian Configuration Data via FTP12.2.5 41
12.2.5.1 Reloading NetGuardian Configuration Data 41
Debug Input and Filter Options12.2.6 42
Web Interface13 43
Logging on to the NetGuardian13.1 43
Navigating the Web Interface13.2 44
Edit Mode13.3 44
System Settings13.3.1 45
Defining SNMP Parameters13.3.2 46
Controlling Access to the NetGuardian13.3.3 49
13.3.3.1 Logon Settings 49
13.3.3.2 Logon Profiles and Access Rights 49
13.3.3.3 Filter IPA Config and Operation 51
13.3.3.4 Radius Authentication Settings 52
Ethernet Settings13.3.4 53
13.3.4.1 Using the Base URL Field 53
Configuring Ports13.3.5 55
13.3.5.1 Modem Settings 55
13.3.5.2 Data Port Settings 56
13.3.5.2.1 Data Port Types 57
13.3.5.2.2 Direct and Indirect Proxy Connections 58
Configure Alarm Notifications13.3.6 59
13.3.6.1 Alphanumeric Pager Setup 60
13.3.6.2 SNPP Notification Setup 60
13.3.6.3 Numeric Pager Setup 60

13.3.6.4 Text Paging Setup 61
13.3.6.5 Email Notification Setup 61
13.3.6.5.1 SMTP & POP3 Authentication Support 62
13.3.6.6 SNMPv1 Paging Setup 62
13.3.6.7 SNMPv3 Paging Setup 62
13.3.6.8 TCP Paging Setup 63
13.3.6.9 NUM17 Pager Setup 63
13.3.6.10Echo Notification Setup 64
Defining Point Groups13.3.7 65
Configuring Base Discrete Alarms13.3.8 66
Configuring System Alarms13.3.9 67
Setting Ping Targets13.3.10 68
Setting the Accumulation Timer13.3.11 69
Configuring Analogs13.3.12 70
13.3.12.1Integrated Temperature and Battery Sensor (Optional) 71
13.3.12.2Analog Polarity Override 71
13.3.12.3Analog Step Sizes 72
Configuring Control Relays13.3.13 72
Setting Event Qualification TImers13.3.14 73
Setting System Timers13.3.15 74
Setting the System Date and Time13.3.16 76
13.3.16.1Network Time Protocol Support 77
PPP Modes13.3.17 77
Building Access Control13.3.18 79
Configuring IP Cameras13.3.19 80
Alarm Sync13.3.20 81
Saving Changes or Resetting Factory Defaults13.3.21 81
13.3.21.1Rebooting the NetGuardian 81
Monitor Mode13.4 82
Alarm Summary13.4.1 82
Base Alarms13.4.2 82
Ping Targets13.4.3 82
Base Analogs13.4.4 83
System Alarms13.4.5 83
Accum Timer13.4.6 83
Controls13.4.7 84
Event Log13.4.8 84
Monitoring Port Activity13.4.9 85
Reference Section14 87
Display Mapping14.1 87
System Alarms Display Map14.1.1 88

SNMP Manager Functions14.2 92
SNMP Granular Trap Packets14.3 93
Trap SNMP Logic14.4 94
ASCII Conversion14.5 94
RADIUS Dictionary File (Available on Resource Disk)14.6 95
DNP3 Configuration / Interoperability Guide14.7 96
DNP v3.0 Device Profile14.7.1 96
DNP V3.0 Implementation Table14.7.2 99
DNP V3.0 Point List14.7.3 100
Frequently Asked Questions15 105
General FAQs15.1 105
SNMP FAQs15.2 108
Pager FAQs15.3 109
Technical Support16 110
End User Iisence Agreement17 111

1
NetGuardian 420 Overview1
The NetGuardian has all the tools you need to manage your remote site.
The NetGuardian 420 — The Intelligent RTU for Complete Site Management
The NetGuardian 420 is a RoHS 5/6-compliant, LAN-based, SNMP/DCPx remote telemetry unit. The
NetGuardian has all the tools you need to manage your remote sites, including built-in alarm monitoring, paging and
email capabilities that can eliminate the need for an alarm master.
With the NetGuardian, you can:
·Monitor 20 discrete alarms, 32 ping alarms, and up to 6 analog alarms
·Controlremote site equipment via 4 terminal server ports and up to 4 controlrelays
·Monitor your remote site from anywhere using the NetGuardian's built-in Web Browser Interface.
·Report alarms to multiple SNMP managers or the T/Mon NOC Alarm Monitoring System.
·Report alarms via LAN or dial-up connection.
·Automatically send pager and email alarm notifications 24/7.
·Connect multiple concurrent users via Telnet over LAN to telecom switches, servers, radios, PBXs and
other equipment.
·Monitor discrete and analog threshold alarms.
·Ping IP network devices and verify that they're online and operating.
New: The NetGuardian 420 supports serial baud rates up to 115,200, optional external temperature sensor,
analog readings accurate to within +/- 1%, one 10/100 NICs (isolated), SNMPv2c, SNMPv2c Inform trap, and
SNMPv3.
Stand-alone local visibility
You don't need an alarm master unit to monitor your site with the NetGuardian. With the NetGuardian's built-in
Web Browser Interface, you can access the NetGuardian, view alarms and control remote site devices from any
computer anywhere in your network.
24/7 pager and email alerts - no master needed
Out of the box, the NetGuardian supports 24/7 pager and email reporting. Send alarms directly to maintenance
technicians in the field, even when no one's in the office.
Connect via LAN to telecom switches, servers, radios and more
Each of the NetGuardian's eight serial ports can be individually configured to serve as a craft port, a channel port
or a TCP or UDP reach-through port, giving you LAN-based terminal server access to up to 4 serial devices.
NEW - RADIUS Authentication
Take the security of your alarm remotes to the next level with RADIUS authentication. Now the NetGuardian
420 can interact with your RADIUS server, integrating it as part of your enterprise management.
Reports to multiple SNMP managers and T/Mon NOC simultaneously
The NetGuardian reports to both the T/Mon NOC Alarm Monitoring System and any SNMP manager. You can
simultaneously forward alarms from the NetGuardian to T/Mon NOC and multiple SNMP managers at multiple IP
addresses. Alarms can also be configured to dispatch to one, some, or all SNMP managers.

2
Shipping List2
While unpacking the NetGuardian, please make sure that all of the following items are included. If some parts are
missing, or if you ever need to order new parts, please refer to the part numbers listed and call DPS Telecom at
[phone].
NetGuardian 420: D-PK-NG420 NetGuardian 420 Hardware
Manual D-UM-NG420
NetGuardian 420 Resource CD DB9M-DB9F Download Cable 6 ft.
(includes manuals, MIBs, and software) D-PR-045-10-A-04
x2
One Ethernet Cables 14 ft. 23" Rack Ears
D-PR-923-10A-14 D-CS-325-10A-01
x2 x4
19" Rack Ears Four Metric Rack Screws
D-CS-325-10A-00 2-000-80750-03
x8 x4
Eight 3/8" Ear Screws Four Standard Rack Screws
1-000-60375-05 1-000-12500-06
x3
Power Connector Plugs for Main Power Three 3/4-Amp GMT Main Power
Fuses
2-820-35102-00 2-741-00750-00
x2

3
Two Cable Ties Pads
2-015-00030-00
Screws and connectors are packaged in a sealed hardware kit, shown above
(Hardware kit containing a WAGO connector)
Optional Accessories3
Telephone Cable 6 ft. 4 Pin Analog Connector
(Optional, if ordering modem) (optional, for analogs)
D-PR-045-10A-01 2-820-00814-02
External Temperature Sensor Wire Wrap Back Panel
D-PR-1870-10A-07 D-PK-WWADP-12003.00001
NetGuardian SiteMON IP G2 D-PK-CAMRA
The NetGuardian SiteCAM provides streaming video security surveillance of remote sites. The SiteCAM connects
to either the NetGuardian's integrated 10/100BaseT switch or a separate 10/100/1000 switch. SiteCAM video can
be accessed directly from the NetGuardian's Web Browser Interface. Up to four cameras can be supported.

4
Specifications4
Discrete Alarm Inputs: 20 (2 Groups: 1-16, 17-20. Each group can be configured as either power inputs
or TTL)
Analog Alarms: Up to 6 (2 user defined / 1 Internal temp / 1 External temp / 2 Voltage)
Analog Input Range: (–94 to 94 VDC or 4 to 20 mA)
Control Relays: 4(2 Form A and 2 Form C)
Maximum Voltage: 60 VDC/120 VAC
Maximum Current: 1 Amp, AC/DC
Ping Alarms: 32
Protocols: SNMPv1, SNMPv2c, SNMPv3, DCPx, DCPf, TRIP, SNPP
SMTP, TAP, HTTP, FTP, TELNET, ICMP, RADIUS
Interfaces: 4 RJ45 Yost serial ports
1 RJ45 10/100 Ethernet ports
1 RJ11 telco jack (optional for modem)
1 50-pin amphenolconnectors (discretes, controls, and analogs)
1 4-pin screw connector (analogs)
Dimensions: 1.75"H x 17"W x 7.5"D
Mounting: 19" or 23" rack
Weight: 3.5 lbs
Power Input: –48VDC (–36 to –72 VDC)
(Optional) –24 VDC (–18 to –36 VDC)
(Optional) Wide Range –24/–48 VDC ( –18 to –58 VDC)
`(Optional) +24VDC (+18 to +36VDC)
Power Output: (Optional) +12 VDC or +24 VDC power output for external sensor
Current Draw: 500 mA at 48VDC
Fuse: 3/4 amp GMT for power inputs
Modem: 33.6 K internal (optional)
Visual Interface: LCD display
9 bicolor LEDs
5 unicolor LEDs
Audible Notification: Alarm speaker
Operating Temperature: 32°–140° F (0°–60° C)
Operating Humidity: 0%–95% noncondensing
Build Options: Real-time clock, HTTPS (Secure web browsing),
Serial port options: RS232, RS485, or 202 modem
MTBF: 60 years
Windows Compatibility: Windows 95, 98 NT, ME, XP, 2000, Vista, 7 32/64 bit
RoHS: 5/6

5
Hardware Installation5
Tools Needed5.1
To install the NetGuardian, you'll need the following tools:
Phillips No. 2 Screwdriver Small Standard No. 2 Screwdriver
Wire Strippers/Cutter Wire Wrap Gun (ifhinged wire wrap panel is used)
Punch Down Tool (if 66 blocks are used) PC with terminal-emulating software
(i.e. HyperTerminal)
Mounting5.2
The NetGuardian can be flush or rear-mounted
The NetGuardian mounts in a 19" rack or a 23" rack using the provided rack ears for each size. Two rack ear
locations are provided. Attach the appropriate rack ears in the flush-mount or rear-mount locations shown in
Figure 6.2.1.
Note: Rack ears can be rotated 90° for wall mounting or 180º for other mounting options (not shown).

6
Power Connection5.3
Power connectors and fuses.
The NetGuardian has two screw terminal barrier plug power connectors, located on the left side of the back panel.
The Grounding Lug on the back of the unit provides a permanent connection to earth
ground when connected. The Grounding Lug must be used in order to comply with
standards.
If the unit is not ground isolated the power input terminal labeled "GND" is electrically
the same as the ground lug. For negative input voltages this means that the ground lug
(and the chassis) is positively charged in reference to the power input terminal labeled
"-BATT" or "-48". Placing a (non-GND Isolated) NetGuardian on a rack that shares
ground
with a +48 power supply will short the (+) Positive output of the power supply to
ground,
since the (+) would connect to ground.
Before you connect a power supply to the NetGuardian, test the voltage of your power supply:
·Connect the black common lead of a voltmeter to the ground terminal of the battery, and connect the red
lead of the voltmeter to the battery's –48 VDC terminal. The voltmeter should read between –43 and –
53 VDC. If the reading is outside this range, test the power supply.
To connect the NetGuardian to a power supply, follow these steps:
1. Remove the fuse from the back panel of the NetGuardian. Do not reinsert the fuse until all
connections to the unit have been made.
2. Remove the power connector plug from Power Connector A. Note that the plug can be inserted into the
power connector only one way — this ensures that the barrier plug can only be reinserted with the correct
polarity. Note that the –48V terminal is on the left and the GND terminal is on the right.
3. Use the grounding lug to connect the unit to earth ground. The grounding lug is next to the symbol.
Insert the eyelet of the earth ground cable between the two bolts on the grounding lug (Ground cable not
included).
4. Insert a battery ground into the power connector plug's right terminal and tighten the screw; then insert
a –48 VDC line to the plug's left terminal and tighten its screw.
5. Push the power connector plug firmly back into the power connector. If the power feed is connected
correctly, the LED by the connector will light GREEN. If the polarity of the power feed is reversed, the
LED will not illuminate.
6. Repeat Steps 2–4 for Power Connector B.

7
7. Reinsert the fuse to power the NetGuardian. The front panel LEDs will flash RED and GREEN.
LAN Connection5.4
RJ45 Ethernet Connection
8
7
5
6 Receive In–(RI–)
4
3 Receive In + (RI+)
2 Transmit Out–(TO–)
1 Transmit Out + (TO+)
Ethernet port pinout
The NetGuardian 420 has one 10/100 Ethernet port. If the IP connection is OK, the LNK LED will light SOLID
GREEN when the cable is connected.
Build Option: Net1/Net2 (Dual NIC)
For enhanced security, the NetGuardian 420 can be ordered with a second LAN connection and optional 4-port
switch (Net2). When ordered this way, both Net1 and Net2 have separate IP addresses and subnet mask, so you
can safely connect one port to your private company LAN and the other to the public Internet.
There is no routing between Net1 and Net2, this ensures that both connections are independent of each other. By
default, outbound data traffic from the NetGuardian will be sent over Net2. Only outbound data that is specifically
directed to Net1, usually the Company's LAN, will be sent to Net1. To use both network interfaces, be sure Net1
and Net2 are on separate Subnet Masks.
To use only one of the network interfaces, set either Net1 or Net2 to IP address being used and set the unused
network IP subnet and gateway to 255.255.255.0. Both ports are standard RJ45 ports that take standard RJ45
Ethernet cables. If the IP connection is OK, the LNK LED will light SOLID GREEN when the cable is
connected.
Build Option: 100Base-FX SFP Fiber Port on Net2
Your NetGuardian 420 can also be ordered with a 100Base-FX SFP Fiber Port on Net2 (instead of standard
LAN). The SFP ports are internally connected to the 4 port switch and Net2 meaning if this option is populated,
port 4 is inactive on the switch.
The NetGuardian 420 with Dual NIC and 100Base-FX SFP Fiber Port options
populated

8
Telco Connection5.5
Telco jack
The rear panel telco jack connects the NetGuardian's internal 33.6 modem to a standard phone line for dial-up
access and pager alarm notification.
4
3 Ring
2 Tip
1
RJ11 Phone Line Connection
Pinoutforthe Telco jack

9
Alarm and Control Relay Connections5.6
Alarm and control relay connectors (*Optional Analog Connector Shown)
The NetGuardian 420's discrete alarm inputs, control relay outputs are connected through the 50-pin connectors
labeled "Discretes 1–20/ Relays 1–4"on the back panel. Analog alarm inputs 1 and 2 are connected through the
four-pin analog connector.
Note: Analog alarms are a build option for the NetGuardian 420. Your NetGuardian 420 may not have analog
inputs.
5.6.1 Alarm and Control Relay Connector Pinout Table
Discretes 1–25
RTN
ALM
RTN
ALM
ALM 1
1
26
ALM 13
13
38
ALM 2
2
27
ALM 14
14
39
ALM 3
3
28
ALM 15
15
40
ALM 4
4
29
ALM 16
16
41
ALM 5
5
30
ALM 17
17
42
ALM 6
6
31
ALM 18
18
43
ALM 7
7
32
ALM 19
19
44
ALM 8
8
33
ALM 20
20
45
ALM 9
9
34
ALM 10
10
35
ALM 11
11
36
ALM 12
12
37
Control Relays 1–4
NO
NC
CO
CTRL 1
21
46
47
CTRL 2
23
48
22
*CTRL 3
49
49
24
*CTRL 4
50
50
25
Analogs 1–2
ADC
–
+
1
1–
1+
2
2–
2+
Alarm and control relay connector pinout for the 420
Above, you'll see pinouts for the 50-pin connector "Discretes 1–20 / Relays 1–4," and the pinout for the four-pin
connector "Analogs 1–2."
*You can set your NetGuardian's control relays 3 and 4 for either Normally Open or Normally Closed operation
via a jumper on the NetGuardian PC board. By default, relays 3 and 4 are configured for Normally Open
operation. For more information, see the Controls section of this manual.

10
5.6.2 Discrete Inputs/Control Relay Pinout
Pinout of the NetGuardian Amphenol labeled "Discretes 1-20/Relays 1-4"
Note: CT3SW and CT4SW indicate relays 3 and 4, which are hardware configurable (switched) for Normally
Open or Normally Closed operation via jumpers on the NetGuardian PC Board. By default, relays 3 and 4 are set
for Normally Open operation.

11
5.6.3 Optional Wire Wrap Back Panel
The Wire Wrap attachment for the NetGuardian 420
The optional wire wrap attachment provides wire-wrap connections for the NetGuardian 420's alarms and control
relays. To connect alarms and relays to the back panel:
1. Connect the panel directly to the unit's rear amphenol.
2. Connect discretes and control relays to the appropriate pins.
Pinout for the Wire Wrap Discrete Alarms
Pinout for Wire Wrap Control Relays

12
5.6.4 Integrated Temperature and Battery Sensor (Optional)
The external temperature sensor
The optional integrated temperature and battery sensor monitors the ambient temperature and the NetGuardian's
power inputs. This option is available only if it was ordered with your NetGuardian. The integrated temperature
sensor measures a range of 32° F to 140° F (0° C to 60° C) within an accuracy of ± 1°.
Sensor Function
Analog Input Options
Temperature
Can be used on analog input 7 (Internal)
Power Feed A
Can be used on analog input 5
Power Feed B
Can be used on analog input 6
Temperature
Can be used on analog input 8 (External)
Integrated sensor connection options
Each integrated sensor takes the place of an analog input, and does not need any external connections. No other
analog input can be connected to the input point used for the integrated sensors. The table above lists the
connection options for the integrated temperature sensor. Note that these options are set at the factory, based on
the option ordered, and cannot be adjusted by the user.
For more information on configuring your analogs using the web interface, see the section titled, "Configuring
Analogs" in the "Web Interface" section of this manual.

13
Discrete Alarms5.7
Contact to Ground
–Batt.
Alarm
Dry Contact
–Batt.
GND
Alarm
NetGuardian case NetGuardian case
Note: Make sure that grounds have a common reference—
this is usuallydone bytying grounds together.
GND
Discrete alarm points can connect as a dry contact or a contact to ground
The NetGuardian 420 features up to 20 discrete alarm inputs — also called "digital inputs" or "contact
closures". Discrete alarms are either active or inactive, so they're typically used to monitor on/off
conditions like power outages, equipment failures, door alarms and so on.
The NetGuardian's discrete alarm points are single-lead signals referenced to ground. The ground side
of each alarm point is internally wired to ground, so alarm points can connect either as a dry contact or
a contact to ground.
In a dry contact alarm: The alarm lead brings a contact to the ground lead, activating the alarm.
In a contact to ground alarm: Asingle wire brings a contact to an external ground, activating the alarm.
You can reverse the polarity of each individual discrete alarm point, so that the alarm is activated when
the contact is open. This is done with a software configuration change.

14
Data Ports5.8
The NetGuardian's 4 terminal server ports provide reach-through terminal server functionality for connecting
multiple simultaneous users to external equipment via Telnet over LAN. Each port can function as a proxy
connection to an external device, a craft port, a channel port, a TCP or UDP reach-through port. The NetGuardian
can support simultaneous proxy connections for up to 4 users.
1 TX+ (Transmit +)
2 N/C (Not Connected)
3 RX+ (Receive +)
4 GND (Ground)
5 GND (Ground)
6 RX- (Receive -)
7 N/C (Not Connected)
8 TX- (Transmit -)
Yost RS-485 RJ45 Connector
1 CTS (Clear to Send)
2 DSR (Data Set Ready)
3 RXD (Receive Data)
4 GND (Ground)
5 GND (Ground)
6 TXD (Transmit Data)
7 DTR (Data Terminal Ready)
8 RTS (Request to Send)
Yost RS-232 RJ45 Connector
1 TX- (Transmit -)
2 N/C (Not Connected)
3 RX+ (Receive +)
4 GND (Ground)
5 GND (Ground)
6 RX- (Receive -)
7 N/C (Not Connected)
8 TX+ (Transmit +)
Yost 4-Wire 202 Connector
Data port pinouts
NetGuardian data ports can be configured for Yost RS-232 or RS-485.These data ports are available as optional
builds on NetGuardian hardware units (Call DPS Sales for more information @ 1-800-693-0351).
12345
TX
GND
6789
CTS
Pin # Signal Description
1Not connected
2TX Transmit data
3
4
5GND Ground
6Not connected
7CTS Clear to send
8
9Not connected
Recieve Data
Not connected
Request to send
DB9 RS-232
RTS
RX
RTS
RX
DB9 RS-232 Pinouts (Craft Port Only)