DPS Telecom NetGuardian 832A G5 User manual

USER MANUAL
NetGuardian 832A & 864A G5
February 26, 2010 D-OC-UM102.26100 Firmware Version 5.2D
Visit our website at www.dpstelecom.com for the latest PDF manual and FAQs.

© 2010 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 from DPS 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 Telecom shall not be
liable for errors contained herein or consequential damages in connection with the furnishing, performance, or use of this
manual.
Notice
Revision History
February 26, 2010
December 2, 2009
July 13, 2009
February 5, 2009
December 18,
2008
November 26,
2008
March 28, 2008
March 3, 2008
February 6, 2008
Added info for NetGuardian G5 with GigE Fiber top board option.
Added info on Command Line Mode in TTY.
Revisions to Analog and LAN sections
Added RADIUS information on G5 platform and NetGuardian E16
expansion option. Updates graphics and instructions for installing
the hinged pluggable back panel.
Added sections for installing the hinged pluggable back panel and
tuning the 202 modem.
Edited directions for analog dipswitches.
Updated blue LCDs to yellow
Added Section for GPRS/CDMA Wireless option
Added NetGuardian 864A Tables and 10/100Mbps Switch
Added pictures of sealed hardware kits

ContentsVisit our website at www.dpstelecom.com for the latest PDF manual and FAQs
NetGuardian G5 Overview1 1
About This Manual2 2
Shipping List3 2
Port Allocation3.1 4
Optional Accessories4 4
Specifications5 7
Hardware Installation6 8
Tools Needed6.1 8
Mounting6.2 8
Power Connection6.3 9
LAN Connection6.4 12
Telco Connection6.5 13
Alarm and Control Relay Connections6.6 13
Alarm and Control Relay Connector Pinout Table (832A)6.6.1 14
Alarm and Control Relay Connector Pinout Table (864A)6.6.2 15
Discretes 1–24 Connector Pinout Diagram (832A)6.6.3 16
Analogs1–6/Discretes 25–32/Relays 1–8 Connector Pinout Diagram (832A)6.6.4 17
Discretes 1- 48 Connector Pinout Diagram (864A)6.6.5 18
Analogs 1-6/Discretes 49-64/Relays 1-8 Connector Pinout Diagram (864A)6.6.6 19
Analog Dipswitches6.6.7 20
Integrated Temperature and Battery Sensor (Optional)6.6.8 21
Data Ports6.7 21
Connecting NetGuardian Accessories6.7.1 23
GLD/ECU Expansion Port (RS-485)6.7.2 23
Integrated 10/100BaseT Ethernet Switch (Optional)6.8 23
GSM/GPRS or CDMA Wireless Modem Top Board (Optional)6.9 25
+12 or +24 VDC Sensor Power Supply6.10 26
Optional 66 Block Connector (832A)6.11 27
Optional 66 Block Connector (864A)6.12 29
Optional Hinged Wire-Wrap Back Panel6.13 31
Lexan Wire-Wrap Cover6.13.1 32
Optional Hinged Pluggable Back Panel6.14 33
Controls6.15 35
LCD Display7 36
Alarm and Control Status Messages7.1 37
LCD Command Menu7.2 37

Sound off7.2.1 38
Reboot7.2.2 38
Run Config7.2.3 39
Contrast7.2.4 39
Alarm Speaker8 39
Front Panel LEDs9 40
Back Panel LEDs10 41
Configuring the NetGuardian11 41
RADIUS Authentication (Available as of Firmware 5.0I)11.1 42
Connecting to the NetGuardian12 42
... via Craft Port12.1 42
... via LAN12.2 43
TTY Interface13 44
Unit Configuration13.1 44
Ethernet Port Setup13.1.1 44
SFP Fiber Connection (For Fiber Build Option)13.1.2 46
Edit PPP Port13.1.3 47
Tune 202 Modem13.1.4 48
RADIUS Configuration13.1.5 49
New! - TTY Command Mode13.1.6 50
Monitoring13.2 53
Monitoring the NetGuardian13.2.1 53
13.2.1.1 Monitoring Base Alarms 53
13.2.1.2 Monitoring Ping Targets 54
13.2.1.3 Monitoring and Operating Relays (Controls) 55
13.2.1.4 Monitoring Analogs 55
13.2.1.5 Monitoring System Alarms 56
13.2.1.6 Monitoring Data Port Activity 56
13.2.1.7 Monitoring the Accumulation Timer 56
Viewing Live Target Pings13.2.2 57
Proxy Menu13.2.3 57
Event Logging13.2.4 58
Backing Up NetGuardian Configuration Data via FTP13.2.5 59
13.2.5.1 Reloading NetGuardian Configuration Data 59
Debug Input and Filter Options13.2.6 60
Reference Section14 61
Display Mapping14.1 61
System Alarms Display Map14.1.1 63
SNMP Manager Functions14.2 66
SNMP Granular Trap Packets14.3 68

Trap SNMP Logic14.4 70
ASCII Conversion14.5 70
RADIUS Disctionary File (Available on Resource Disk)14.6 71
Frequently Asked Questions15 72
General FAQs15.1 72
SNMP FAQs15.2 75
Pager FAQs15.3 76
Technical Support16 77

1
NetGuardian G5 Overview1
Fig. 1.1. The NetGuardian has all the tools you need to manage your remote site.
The NetGuardian G5 — The Intelligent RTU for Complete Site Management
The NetGuardian G5 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 32 discrete alarms, 32 ping alarms, and 8 analog alarms
·Control remote site equipment via 8 terminal server ports and 8 control relays
·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 G5 supports serial baud rates up to 115,200, additional RS485 for GLD/ECU expansion
polling port, triple CPU speed for faster processing, optional built-in 4-port switch (tied to NET2), optional
external temperature sensor, analog readings accurate to within +/- 1%, dual 10/100 NICs (isolated) replacing
the 10BaseT NICs, SNMPv2c, SNMPv2c Inform trap, and SNMPv3.
TIP: This is the basic installation and hardware manual. For software and web configuration manuals, please
refer to appropriate manual on the Resource CD included with your shipment or visit the DPS website at www.
dpstele.com/pdfs/op_guides
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 eight serial devices.
NEW - RADIUS Authentication (As of firmware v5.0I)
Take the security of your alarm remotes to the next level with RADIUS authentication. Now the NetGuardian
G5 can interact with your RADIUS server, integrating it as part of your enterprise management.

2
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.
About This Manual2
There are three separate user manuals for the NetGuardian G5: the Hardware Manual (which you're reading
now), the NGEditG5 User Manual, and the NetGuardian G5 Web Interface User Manual.
This Hardware Manual provides instructions for hardware installation and using the TTY interface. The
NGEditG5 and Web Interface User Manuals, included on the NetGuardian Resource CD, provide instructions for
configuring the NetGuardian using the Windows-based NGEditG5 utility software or the Web Interface.
Shipping List3
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 832A G5: D-PK-NETG5-12001 NetGuardian G5 Hardware
NetGuardian 864A G5: D-PK-NG864-12001 Manual D-OC-UM102.26100
NetGuardian G5 Resource CD DB9M-DB9F Download Cable 6 ft.
(includes manuals, MIBs, and software) D-PR-045-10-A-04
Two Ethernet Cables 14 ft. Telephone Cable 6 ft.
D-PR-923-10A-14 D-PR-045-10A-01
23" Rack Ears 19" Rack Ears

3
Eight 3/8" Ear Screws Four Standard Rack Screws
Four Metric Rack Screws Three 3/4-Amp GMT Main Power Fuses
Two Large Power Connector Plugs for Main Power Four Cable Ties
(Sixteen with hinged panel)
4 Pin Analog Connector Pads
Screws and connectors are packaged in a sealed hardware kit, shown above
(Hardware kit containing a WAGO connector)
Optional Items
Two 1/4-Amp GMT Accessory Fuses One Small Power Connector Plug for Sensor Output
External Temperature Sensor
D-PR-984-10A-10

4
Port Allocation3.1
Located on the top of the unit in the back left corner is the Port Allocation Sticker. This sticker includes your
part number (D-PK-NETG5-#####.#####), which specifies your build option. The table below it lists your port
allocation.
Optional Accessories4
You can extend the capabilities of the NetGuardian through accessory units that provide greater discrete alarm
capacity, remote audiovisual alarm notification, visual surveillance of remote sites, and other options. If you
would like to order any of these accessories, or if you would like more information about them, call DPS
Telecom at [phone].
NetGuardian Expansion (NetGuardian DX G4)
D-PK-NETDX-12022.00001
The NetGuardian Expansion G4 provides an additional 48 discrete and 8 relay controls. Up to three NetGuardian
Expansions can be daisy-chained off one NetGuardian, providing a total of 176 discrete and 32 analog alarm
points.
NetGuardian Expansion
The NetGuardian 480 (NG480) Expansion provides an additional 80 alarms and 4 relays. With 80 discrete alarm
inputs, you can easily forward all the alarms of a small to medium-sized site.

5
NetGuardian E16
D-PK-DXE16
Adding the NetGuardian E16 provides an additional 16 alarm points and 16 controls. One NetGuardian E16 unit
may be used per NetGuardian 832A/864A G5 remote. In this configuration, the E16 must be the last unit in the
chain. Having only 1 serial port, it cannot forward traffic to a subsequent RTU.
General LCD Display (GLD)
D-PC-820-10A-04
The General LCD Display (GLD) is a small wall-mounted remote terminal for the NetGuardian. The LCD
display shows system status and alarm messages, and the built-in speaker gives an audible notice of alarms. Up
to 12 GLDs can be daisy-chained off the NetGuardian.
NetGuardian SiteCAM D-PK-CAMRA-12001.00001
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.
Hinged Wire-Wrap Back Panel
For 19" rack: D-PK-NGPAN-12002 For 23" rack: D-PK-NGPAN-12006
The hinged wire-wrap back panel provides wire-wrap connections for the NetGuardian's alarms and control
relays.

6
Pluggable Barrier Panel
For 19" rack: D-PK-NGPAN-12003 For 23" rack: D-PK-NGPAN-12007
The pluggable barrier panel provides screw-lug barrier plug connections for the NetGuardian's alarms and
control relays.
NetGuardian 3288 Test Fixture
D-PK-TSTBX-12005.00001
Every DPS product is rigorously tested before shipping, and the NetGuardian Test Box allows technicians to
verify every discrete alarm input, control relay, and voltage-based analog alarm input on a NetGuardian G5. This
time-tested tool is now available to you as the NetGuardian 3288 Test Fixture (known casually as the
"NetGuardian Test Box"). With 32 discrete alarm toggles, 8 analog knobs, and 8 control relay LEDs, you can
verify every alarm input and control output on your NetGuardians in a controlled way.

7
Specifications5
Discrete Alarm Inputs: 32 (expandable to 80, 128, or 176 in G5 model)
64 (expandable to 112, 160, or 208 in 864A model)
Analog Alarms: 8
Analog Input Range: (–94 to 94 VDC or 4 to 20 mA)
Control Relays: 8 Form C (expandable to 16, 24, 32)
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: 9 RJ45 Yost serial ports
2 RJ45 10/100 Ethernet ports (1 port tied internally to switch- if switch option is
purchased)
1 RJ11 telco jack
2 50-pin amphenol connectors (discretes, controls, and analogs)
1 4-pin screw connector (analogs)
With Fiber top-board build option: 4 10/100/1000 copper Ethernet ports AND
2- 1000 Base-X SFP Fiber ports
Dimensions: 1.75"H x 17"W x 12"D (4.5 cm x 43.2 cm x 30.5 cm)
Weight: 4 lbs. 3 oz. (1.9 kg)
Mounting: 19" or 23" rack
Power Input: –48VDC (–40 to –70 VDC)
(Optional) –24 VDC (–18 to –36 VDC)
(Optional) Wide Range –24/–48 VDC ( –18 to –72 VDC)
`(Optional) +24VDC (+20 to +34VDC)
Power Output: (Optional)12 VDC or 24 VDC power output for external sensor
Current Draw: 200 mA
Fuse: 3/4 amp GMT for power inputs
1/4 amp GMT for external sensor power output and integrated Ethernet switch
Modem: 33.6 K internal
Visual Interface: LCD display
16 bicolor LEDs
5 unicolor LEDs (10 with Switch Option)
Audible Notification: Alarm speaker
Operating Temperature: 32°–140° F (0°–60° C)
Operating Humidity: 0%–95% noncondensing
*RoHS 5 Approved

8
Hardware Installation6
Tools Needed6.1
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 (if hinged wire wrap panel is used)
Punch Down Tool (if 66 blocks are used) PC with NGEditG5 software
Mounting6.2
Fig. 6.2.1. 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).

9
Power Connection6.3
Fig. 6.3.1. Power connectors and fuse.
The NetGuardian has two screw terminal barrier plug power connectors, located on the left side of the back
panel. (See Figure 6.3.1.)
WARNING!
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.
Grounding Lug and Symbol
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

10
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. Reinsert the fuse to power the NetGuardian. The front panel LEDs will flash RED and GREEN.
To connect the NetGuardian to a power supply using a WAGO connector, follow these steps:
WARNING!
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.
Grounding Lug and Symbol
1. Remove the 2fuses (A& B) from the back panel of the NetGuardian. Do not reinsert the fuses until all
connections to the unit have been made.
2. Remove the WAGO power connector. 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 Slots 1 and 3 and the GND terminal is on Slots 2 and 4.
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 slots 2 and 4 by pushing down on top of the
appropriate slot of the WAGO connector with a screwdriver and inserting the wire into the slot, then releasing
the screwdriver. Insert a –48 VDC line to the plug's slots 1 and 3 using the same method as before.

11
Inserting a -48 VDC Line into Slot 1 of WAGO
Connector
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. Reinsert the fuses to power the NetGuardian. The front panel LEDs will flash RED and GREEN.

12
LAN Connection6.4
Fig. 6.4.1. Two 10/100 Ethernet ports (With Switch)
Fig. 6.4.2. Two 10/100 Ethernet ports (Without Switch)
RJ45 Ethernet Connection
8
7
5
6 Receive In– (RI–)
4
3 Receive In + (RI+)
2 Transmit Out– (TO–)
1 Transmit Out + (TO+)
Fig. 6.4.3 Ethernet port pinout
For enhanced security, the NetGuardian G5 has two 10/100 Ethernet ports. Each port has its own separate IP
address and subnet, so you can safely connect one port to your private company LAN and the other to the public
Internet.
There is no routing between Net 1 and Net 2, this ensures that both connections are independent of each other.
By default, outbound data traffic from the NetGuardian 832A will be sent over Net 2. Only outbound data that is
specifically directed to Net 1, usually the Company's LAN, will be sent to Net 1. 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. If your NetGuardian has the 4-port hub build option, use Net2,
which is connected to the Hub. 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.
The NetGuardian G5 unit with the integrated switch comes with two physical 10/100 Ethernet ports. The
standard G5 unit without the switch comes equipped with two physical Ethernet ports. The switch is internally
tied to NET2 and any one of its four ports can be used for uplink.
Build Option: NetGuardian G5 with GigE Fiber Top Board
If your NetGuardian G5 was ordered with the GigE Fiber top board, 1000Base SFP interface must be used. The
SFP ports are internally connected to the 4 port switch and NET 2.
Fig. 6.4.4. Back panel of NetGuardian G5 with fiber

13
Telco Connection6.5
Fig. 6.5.1. Telco jack
The rear panel telco jack (see Figure 6.5.1) connects the NetGuardian internal modem to a standard phone line
for dial-up access and pager alarm notification.
4
3 Ring
2 Tip
1
RJ11 Phone Line Connection
Fig. 6.5.2 Telco jack pinout
The pinout for the Telco jack is shown in Figure 6.5.2, above.
Alarm and Control Relay Connections6.6
Fig. 6.6.1. Alarm and control relay connectors
The NetGuardian G5's discrete alarm inputs, control relay outputs, and first six analog alarm inputs are
connected through the two 50-pin connectors labeled "Discretes 1–24" and "Analogs 1–6/Discretes 25–32/Relays
1–8" on the back panel. Analog alarm inputs 7 and 8 are connected through the four-pin connector labeled
"Analogs 7–8." (See Figure 6.6.1.)
Note: The NetGuardian's 864A's discrete alarm inputs, control relay outputs, and first six analog alarm inputs are
connected through the two 50-pin connectors labeled "Discretes 1–48" and "Analogs 1–6/Discretes 49–64/Relays
1–8" on the back panel. Analog alarm inputs 7 and 8 are connected through the four-pin connector labeled
"Analogs 7–8."

14
6.6.1 Alarm and Control Relay Connector Pinout Table (832A)
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 21
21
46
ALM 10
10
35
ALM 22
22
47
ALM 11
11
36
ALM 23
23
48
ALM 12
12
37
ALM 24
24
49
GND
25
50
Discretes 25–32
RTN
ALM
ALM 25
1
26
ALM 26
2
27
ALM 27
3
28
ALM 28
4
29
ALM 29
5
30
ALM 30
6
31
ALM 31
7
32
ALM 32
8
33
Control Relays 1–8
NO/NC
CO
CTRL 1
9
34
CTRL 2
10
35
CTRL 3
11
36
CTRL 4
12
37
CTRL 5
13
38
CTRL 6
14
39
CTRL 7
15
40
CTRL 8
16
41
FUSE
17
42
Analogs 1–6
ADC
+
–
ADC 1
19
44
ADC 2
20
45
ADC 3
21
46
ADC 4**
22
47
ADC 5**
23
48
ADC 6**
24
49
GND
25
50
Analogs 7–8
ADC
–
+
7
7–
7+
8
8–
8+
Analogs 7–8
ANA 7 – ANA 8 +
ANA 7 + ANA 8 –
Table 6.6.1.A. Alarm and control relay connector pinout for G5
Table 6.6.1.A shows the pinouts for the 50-pin connectors "Discretes 1–24" and "Analogs 1–6/Discretes 25–
32/Relays 1–8," and the pinout for the four-pin connector "Analogs 7–8."
Note that the NetGuardian's control relays can be set for either Normally Open or Normally Closed operation. By
factory default, all control relays are set to Normally Open. You can reset all relays for Normally Closed
operation at the hardware level by resetting a jumper on the NetGuardian circuit board. You can also configure
the control relays individually, using either the Web interface or the NGEditG5 software utility.
For instructions on resetting control relays for Normally Closed operation, see Section 6.12, "Jumper Options."
ADC** channels 4, 5, and 6 may be unavailable for external use. These analog channels are
sometimes configured in hardware for monitoring A and B power feeds, and internal temperature. For
details regarding your unit's hardware, please reference the product description appendix.