ZyXEL Communications LTE Series User manual

Default Login Details
User’s Guide
LTE Series
Copyright © 2020 Zyxel Communications Corporation
LAN IP Address http://192.168.1.1
Login admin
Password See the Zyxel Device label
Version 1.00_2.00 Ed 7, 8/2020

LTE Series User’s Guide
2
IMPO RTANT!
READ C AREFULLY BEFO RE USE.
KEEP THIS G UIDE FO R FUTURE REFERENC E.
This is a series User’s Guide. Screenshots and graphics in this book may differ slightly from what you see
due to differences in your product firmware or your computer operating system. Every effort has been
made to ensure that the information in this manual is accurate.
Re la te d Do c um e nta tio n
•QuickStartGuide
The Quick Start Guide shows how to connect the Zyxel Device.
•MoreInformation
Go to sup po rt.zyxe l.c o m to find other information on the Zyxel Device.

LTE Series User’s Guide
3
Do c um e nt C o nve ntio ns
Wa rning s a nd No te s
These are how warnings and notes are shown in this guide.
Wa rning s te ll yo u a bo ut thing s tha t c o uld ha rm yo u o r yo ur Zyxe l
De vic e .
Note: Notes tell you other important information (for example, other things you may need to
configure or helpful tips) or recommendations.
Synta x C o nve ntio ns
• The LTE device in this user’s guide may be referred to as the “Zyxel Device” in this guide.
• Product labels, screen names, field labels and field choices are all in b o ld font.
• A right angle bracket ( > ) within a screen name denotes a mouse click. For example, Ne two rk Se tting
> Ro uting > DNS Route means you first click Ne two rk Se tting in the navigation panel, then the Ro uting
submenu and finally the DNS Ro ute tab to get to that screen.
Ic o ns Use d in Fig ure s
Figures in this user guide may use the following generic icons. The Zyxel Device icon is not an exact
representation of your Zyxel Device.
Zyxel Device Generic Router Switch
Server Firewall USB Storage Device
Printer

Contents Overview
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C o nte nts O ve rvie w
Use r’s G uid e ......................................................................................................................................12
Introduction ........................................................................................................................................... 13
The Web Configurator ......................................................................................................................... 21
Quick Start ............................................................................................................................................. 31
Tutorials .................................................................................................................................................. 35
Te c hnic a l Re fe re nc e ........................................................................................................................52
Connection Status ................................................................................................................................ 53
Broadband ............................................................................................................................................ 64
Home Networking ................................................................................................................................. 76
Routing ................................................................................................................................................... 98
Network Address Translation (NAT) ................................................................................................... 106
Dynamic DNS Setup ........................................................................................................................... 116
SAS CBSD ............................................................................................................................................. 120
Firewall ................................................................................................................................................. 126
MAC Filter ............................................................................................................................................ 137
Certificates .......................................................................................................................................... 139
Log ....................................................................................................................................................... 148
Traffic Status ....................................................................................................................................... 151
ARP Table ............................................................................................................................................ 154
Routing Table ...................................................................................................................................... 156
Cellular WAN Status ........................................................................................................................... 159
System .................................................................................................................................................. 164
User Account ...................................................................................................................................... 165
Remote Management ....................................................................................................................... 168
Time Settings ........................................................................................................................................ 173
E-mail Notification .............................................................................................................................. 176
Log Setting .......................................................................................................................................... 179
Firmware Upgrade .............................................................................................................................. 182
Backup/Restore .................................................................................................................................. 184
Diagnostic ........................................................................................................................................... 187
Troubleshooting .................................................................................................................................. 189
Appe ndic e s .....................................................................................................................................195

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Ta b le o f C o nte nts
Do c um e nt C o nve ntio ns ......................................................................................................................3
C o nte nts O ve rvie w .............................................................................................................................4
Ta b le o f C o nte nts .................................................................................................................................5
Pa rt I: Use r’s G uide .......................................................................................... 12
C ha pte r 1
Intro duc tio n ........................................................................................................................................13
1.1 Overview ......................................................................................................................................... 13
1.2 Application for the Zyxel Device .................................................................................................. 14
1.3 Manage the Zyxel Device ............................................................................................................. 14
1.4 Good Habits for Managing the Zyxel Device ............................................................................. 15
1.5 Front and Bottom Panels ............................................................................................................... 15
1.5.1 LEDs (Lights) ........................................................................................................................... 17
1.5.2 Panel Ports & Buttons ............................................................................................................ 17
1.5.3 Turning On/Off WiFi ............................................................................................................... 18
1.5.4 The RESET Button .................................................................................................................... 19
C ha pte r 2
The We b C o nfig ura to r........................................................................................................................21
2.1 Overview ......................................................................................................................................... 21
2.1.1 Access the Web Configurator ............................................................................................. 21
2.2 Web Configurator Layout .............................................................................................................. 23
2.2.1 Settings Icon .......................................................................................................................... 23
2.2.2 Widget Icon ........................................................................................................................... 28
C ha pte r 3
Q uic k Sta rt ..........................................................................................................................................31
3.1 Overview ......................................................................................................................................... 31
3.2 Quick Start Setup ............................................................................................................................ 31
3.3 Time Zone ........................................................................................................................................ 31
3.4 The Internet Connection Setup ..................................................................................................... 32
3.4.1 Successful Internet Connection .......................................................................................... 32
3.4.2 Unsuccessful Internet Connection ...................................................................................... 33
3.5 Quick Start Setup-Wireless ............................................................................................................. 33
3.6 Quick Start Setup-Finish .................................................................................................................. 34

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C ha pte r 4
Tuto ria ls ...............................................................................................................................................35
4.1 Overview ......................................................................................................................................... 35
4.2 Set Up a Wireless Network Using WPS ........................................................................................... 35
4.2.1 Push Button Configuration (PBC) ........................................................................................ 36
4.2.2 PIN Configuration .................................................................................................................. 37
4.3 Connect to the Zyxel Device’s WiFi Network .............................................................................. 38
4.4 Configure a Firewall Rule ............................................................................................................... 41
4.5 Configure MAC Filter ...................................................................................................................... 42
4.6 Upgrade Firmware on the Zyxel Device ...................................................................................... 43
4.7 Back up a Configuration File ......................................................................................................... 44
4.8 Restore Configuration .................................................................................................................... 44
4.9 Configure DHCP ............................................................................................................................. 45
4.9.1 Add Devices to Your Static DHCP List ................................................................................. 46
4.10 Configure Static Route for Routing to Another Network ......................................................... 47
4.11 Access the Zyxel Device Using DDNS ......................................................................................... 49
4.11.1 Register a DDNS Account on www.dyndns.org .............................................................. 50
4.11.2 Configure DDNS on Your Zyxel Device ............................................................................. 50
4.11.3 Test the DDNS Settings ........................................................................................................ 51
Pa rt II: Te c hnic a l Re fe re nc e ........................................................................... 52
C ha pte r 5
C o nne c tio n Sta tus..............................................................................................................................53
5.1 Connection Status Overview ........................................................................................................ 53
5.1.1 Connectivity .......................................................................................................................... 53
5.1.2 System Info ............................................................................................................................. 54
5.1.3 Cellular Info ............................................................................................................................ 56
5.1.4 WiFi Settings ........................................................................................................................... 60
5.1.5 LAN ......................................................................................................................................... 61
C ha pte r 6
Bro a dba nd ..........................................................................................................................................64
6.1 Overview ......................................................................................................................................... 64
6.1.1 What You Can Do in this Chapter ....................................................................................... 64
6.1.2 What You Need to Know ..................................................................................................... 65
6.1.3 Before You Begin ................................................................................................................... 65
6.2 Broadband ...................................................................................................................................... 65
6.3 Cellular WAN ................................................................................................................................... 66
6.4 Cellular APN .................................................................................................................................... 67
6.5 Cellular SIM Configuration ............................................................................................................. 68

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6.6 Cellular Band Configuration .......................................................................................................... 69
6.7 Cellular PLMN Configuration ......................................................................................................... 70
6.8 Cellular IP Passthrough ................................................................................................................... 73
6.9 Cellular Lock .................................................................................................................................... 74
C ha pte r 7
Ho m e Ne two rking ..............................................................................................................................76
7.1 Overview ......................................................................................................................................... 76
7.1.1 What You Can Do in this Chapter ....................................................................................... 76
7.1.2 What You Need To Know ..................................................................................................... 76
7.2 LAN Setup ........................................................................................................................................ 77
7.3 Static DHCP ..................................................................................................................................... 81
7.3.1 Before You Begin ................................................................................................................... 81
7.4 UPnP ................................................................................................................................................. 83
7.5 Technical Reference ...................................................................................................................... 84
7.6 Turn on UPnP in Windows 7 Example ............................................................................................ 85
7.6.1 Auto-discover Your UPnP-enabled Network Device ........................................................ 86
7.7 Turn on UPnP in Windows 10 Example .......................................................................................... 88
7.7.1 Auto-discover Your UPnP-enabled Network Device ........................................................ 90
7.8 Web Configurator Easy Access in Windows 7 ............................................................................. 93
7.9 Web Configurator Easy Access in Windows 10 ........................................................................... 95
C ha pte r 8
Ro uting ................................................................................................................................................98
8.1 Overview ......................................................................................................................................... 98
8.2 Configure Static Route .................................................................................................................. 98
8.2.1 Add/Edit Static Route ........................................................................................................... 99
8.3 DNS Route ...................................................................................................................................... 101
8.3.1 Add/Edit DNS Route ........................................................................................................... 101
8.4 Policy Route .................................................................................................................................. 102
8.4.1 Add/Edit Policy Route ........................................................................................................ 104
8.5 RIP Overview ................................................................................................................................. 105
8.5.1 RIP ......................................................................................................................................... 105
C ha pte r 9
Ne two rk Addre ss Tra nsla tio n (NAT) ................................................................................................106
9.1 Overview ....................................................................................................................................... 106
9.1.1 What You Can Do in this Chapter ..................................................................................... 106
9.1.2 What You Need To Know ................................................................................................... 106
9.2 Port Forwarding Overview ........................................................................................................... 107
9.2.1 Port Forwarding ................................................................................................................... 108
9.2.2 Add/Edit Port Forwarding ................................................................................................... 108
9.3 Port Triggering ............................................................................................................................... 110

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9.3.1 Add/Edit Port Triggering Rule ............................................................................................. 112
9.4 DMZ ................................................................................................................................................ 113
9.5 ALG ................................................................................................................................................. 114
C ha pte r 10
Dyna m ic DNS Se tup .........................................................................................................................116
10.1 DNS Overview ............................................................................................................................. 116
10.1.1 What You Can Do in this Chapter ................................................................................... 116
10.1.2 What You Need To Know ................................................................................................. 116
10.2 DNS Entry ..................................................................................................................................... 117
10.2.1 Add/Edit DNS Entry ........................................................................................................... 117
10.3 Dynamic DNS .............................................................................................................................. 118
C ha pte r 11
SA S C BSD ..........................................................................................................................................120
11.1 SAS CBSD Overview .................................................................................................................... 120
11.1.1 What You Can Do in this Chapter ................................................................................... 120
11.1.2 What You Need to Know ................................................................................................. 120
11.2 The SAS CBSD Procedure Screen .............................................................................................. 121
11.3 The SAS CBSD Configuration Screen ........................................................................................ 122
C ha pte r 12
Fire wa ll..............................................................................................................................................126
12.1 Overview ..................................................................................................................................... 126
12.1.1 What You Need to Know About Firewall ........................................................................ 126
12.2 Firewall ......................................................................................................................................... 127
12.2.1 What You Can Do in this Chapter ................................................................................... 127
12.3 Firewall General Settings ............................................................................................................ 127
12.4 Protocol (Customized Services) ................................................................................................ 129
12.4.1 Add Customized Service ..................................................................................................129
12.5 Access Control (Rules) ............................................................................................................... 130
12.5.1 Add New ACL Rule Screen .............................................................................................. 131
12.6 DoS ............................................................................................................................................... 133
12.7 Firewall Technical Reference .................................................................................................... 134
12.7.1 Firewall Rules Overview .................................................................................................... 134
12.7.2 Guidelines For Security Enhancement With Your Firewall ............................................ 135
12.7.3 Security Considerations .................................................................................................... 135
C ha pte r 13
MAC Filte r .........................................................................................................................................137
13.1 MAC Filter Overview ................................................................................................................... 137
13.2 MAC Filter .................................................................................................................................... 137
13.2.1 Add New Rule ................................................................................................................... 138

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C ha pte r 14
C e rtific a te s .......................................................................................................................................139
14.1 Certificates Overview ................................................................................................................ 139
14.1.1 What You Can Do in this Chapter ................................................................................... 139
14.2 Local Certificates ....................................................................................................................... 139
14.2.1 Create Certificate Request ............................................................................................. 140
14.2.2 View Certificate Request ................................................................................................. 141
14.3 Trusted CA ................................................................................................................................... 143
14.4 Import Trusted CA Certificate ................................................................................................... 144
14.5 View Trusted CA Certificate ...................................................................................................... 144
14.6 Certificates Technical Reference ............................................................................................. 145
14.6.1 Verify a Certificate ............................................................................................................ 146
C ha pte r 15
Lo g ....................................................................................................................................................148
15.1 Log Overview .............................................................................................................................. 148
15.1.1 What You Can Do in this Chapter ................................................................................... 148
15.1.2 What You Need To Know ................................................................................................. 148
15.2 System Log .................................................................................................................................. 149
15.3 Security Log ................................................................................................................................. 149
C ha pte r 16
Tra ffic Sta tus .....................................................................................................................................151
16.1 Traffic Status Overview ............................................................................................................... 151
16.1.1 What You Can Do in this Chapter ................................................................................... 151
16.2 WAN Status .................................................................................................................................. 151
16.3 LAN Status .................................................................................................................................... 152
C ha pte r 17
ARP Ta b le ..........................................................................................................................................154
17.1 ARP Table Overview ................................................................................................................... 154
17.1.1 How ARP Works .................................................................................................................. 154
17.2 ARP Table .................................................................................................................................... 155
C ha pte r 18
Ro uting Ta b le ....................................................................................................................................156
18.1 Routing Table Overview ............................................................................................................ 156
18.2 Routing Table .............................................................................................................................. 156
C ha pte r 19
C e llula r WAN Sta tus ........................................................................................................................159
19.1 Cellular WAN Status Overview .................................................................................................. 159
19.2 Cellular WAN Status .................................................................................................................... 159

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C ha pte r 20
Syste m ...............................................................................................................................................164
20.1 System Overview ........................................................................................................................ 164
20.2 System .......................................................................................................................................... 164
C ha pte r 21
Use r Ac c o unt....................................................................................................................................165
21.1 User Account Overview ............................................................................................................. 165
21.2 User Account .............................................................................................................................. 165
21.2.1 User Account Add/Edit .................................................................................................... 166
C ha pte r 22
Re m o te Ma na g e m e nt.....................................................................................................................168
22.1 Overview ..................................................................................................................................... 168
22.2 MGMT Services ............................................................................................................................ 168
22.3 MGMT Services for IP Passthrough ............................................................................................ 169
22.4 Trust Domain ................................................................................................................................ 170
22.5 Add Trust Domain ....................................................................................................................... 171
22.6 Trust Domain for IP Passthrough ................................................................................................ 171
22.7 Add Trust Domain ....................................................................................................................... 172
C ha pte r 23
Time Se tting s.....................................................................................................................................173
23.1 Time Settings Overview .............................................................................................................. 173
23.2 Time .............................................................................................................................................. 173
C ha pte r 24
E- m a il No tific a tio n ...........................................................................................................................176
24.1 E-mail Notification Overview ..................................................................................................... 176
24.2 E-mail Notification ...................................................................................................................... 176
24.2.1 E-mail Notification Edit ...................................................................................................... 177
C ha pte r 25
Lo g Se tting .......................................................................................................................................179
25.1 Log Setting Overview ................................................................................................................. 179
25.2 Log Setting ................................................................................................................................... 179
C ha pte r 26
Firmwa re Upg ra de ...........................................................................................................................182
26.1 Overview ..................................................................................................................................... 182
26.2 Firmware Upgrade ...................................................................................................................... 182

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C ha pte r 27
Ba c kup / Re sto re ...............................................................................................................................184
27.1 Backup/Restore Overview ........................................................................................................ 184
27.2 Backup/Restore .......................................................................................................................... 184
27.3 Reboot ......................................................................................................................................... 185
C ha pte r 28
Dia g no stic .........................................................................................................................................187
28.1 Diagnostic Overview .................................................................................................................. 187
28.2 Ping/TraceRoute/Nslookup Test ................................................................................................ 187
C ha pte r 29
Tro ub le sho o ting ................................................................................................................................189
29.1 Overview ..................................................................................................................................... 189
29.2 Power and Hardware Connections ......................................................................................... 189
29.3 Zyxel Device Access and Login ................................................................................................ 189
29.4 Internet Access ........................................................................................................................... 191
29.5 UPnP ............................................................................................................................................. 192
29.6 SIM Card ...................................................................................................................................... 193
29.7 Cellular Signal ............................................................................................................................. 193
Pa rt III: Appe ndic e s ...................................................................................... 195
Appendix A Customer Support ..................................................................................................... 196
Appendix B IPv6............................................................................................................................... 202
Appendix C Legal Information ...................................................................................................... 209
Inde x .................................................................................................................................................213

12
PART I
Use r’s G uide

LTE Series User’s Guide
13
CHAPTER 1
Intro duc tio n
1.1 O ve rvie w
Zyxel Device refers to these models as outlined below.
The following table describes the feature differences of the Zyxel Device by model.
The Zyxel Device is an LTE (Long Term Evolution) router that supports (but not limited to) the following:
• Gigabit Ethernet connection
• DHCP (Dynamic Host Configuration Protocol) server
• NAT (Network Address Translation)
• DMZ (Demilitarized Zone)
• Port Forwarding/Triggering
• ALG (Application Layer Gateway)
• Embedded Bridge/Router mode
• Dynamic DNS (Domain Name System) for the first APN (Access Point Name)
• Static/Dynamic Route setting for RIP (Routing Information Protocol)
• Remote Management under Bridge mode
• Address Resolution Protocol (ARP)
O UTDO O R INDO O R
• LTE7461-M602 • LTE5388-S905
• LTE7480-S905
• LTE7485-S905
Table 1 Zyxel Device Comparison Table
LTE7461- M602 LTE7480- S905 LTE7485- S905 LTE5388- S905
2.4G WLAN V V V V
LTE Speed 400/150 Mbps
(FDD-LTE)
573/15.1 Mbps
(TDD-LTE config. #2)
573/15.1 Mbps
(TDD-LTE config. #2)
580/30 Mbps
Gigabit Ethernet Port V V V V
IP Passthrough V V V V
PoE Injector V V V -
Wall Mount V V V -
Pole Mount V V V -
Firmware Version 2.00 2.00 1.00 1.00
TR069 V V V V

Chapter 1 Introduction
LTE Series User’s Guide
14
• Firewall that uses Stateful Packet Inspection (SPI) technology
• Protects against Denial of Service (DoS) attacks
• Filter of LAN MAC address, LAN IP address and URLs
• Local and remote device management
• Firmware upgrade via TR-069 and Web Configurator
The embedded Web-based Configurator enables straightforward management and maintenance. Just
insert the SIM card (with an active data plan) and make the hardware connections. See the Quick Start
Guide for how to do the hardware installation, wall/pole mounting, and Internet setup.
Note: These are the theoretical downlink/uplink rates. LTE speed is affected by strength of
signal, network congestion, LTE band(s) or frequency(-ies) to which your Zyxel Device is
connected, and so forth.
1.2 Applic a tio n fo r the Zyxe l De vic e
Wire le ss WAN
The Zyxel Device can connect to the Internet through a 2G/3G/4G LTE SIM card to access a wireless
WAN connection. Just insert a SIM card into the SIM card slot at the bottom of the Zyxel Device.
Note: You must insert the SIM card into the card slot before turning on the Zyxel Device.
You can install two external antennas to improve your wireless WAN signal strength. See Table 1 on page
13 for the feature differences.
Inte rne t Ac c e ss
Your Zyxel Device provides shared Internet access by connecting to an LTE network. A computer can
connect to the Zyxel Device’s PoE injector or a LAN port for configuration via the Web Configurator.
Fig ure 1 Zyxel Device’s Internet Access Application
1.3 Ma na g e the Zyxe l De vic e
Use the Web Configurator for management of the Zyxel Device using a (supported) web browser.
LTE (4G)/3G/2G
WiFi

Chapter 1 Introduction
LTE Series User’s Guide
15
1.4 G oo d Ha bits fo r Ma na g ing the Zyxe l De vic e
Do the following things regularly to make the Zyxel Device more secure and to manage the Zyxel
Device more effectively.
• Change the password. Use a password that’s not easy to guess and that consists of different types of
characters, such as numbers and letters.
• Write down the password and put it in a safe place.
• Back up the configuration (and make sure you know how to restore it). Refer to Section 27.2 on page
184. Restoring an earlier working configuration may be useful if the Zyxel Device becomes unstable or
even crashes. If you forget your password to access the Web Configurator, you will have to reset the
Zyxel Device to its factory default settings. If you backed up an earlier configuration file, you would
not have to totally re-configure the Zyxel Device. You could simply restore your last configuration.
Write down any information your ISP provides you.
1.5 Fro nt a nd Bo tto m Pa ne ls
The LED indicators are located on the front (LTE5388-S905)/ or the bottom panel (LTE7461-M602 /
LTE7480-S905 / LTE7485-S905).
Fro nt / To p Pa ne ls
Fig ure 2 Top Panel (LTE5388-S905)

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LTE Series User’s Guide
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Fig ure 3 Front Panel (LTE5388-S905)
Bo tto m / Re a r / Side Pa ne ls
Fig ure 4 Bottom Panel (LTE7461-M602 / LTE7485-S905 / LTE7480-S905)
Fig ure 5 Bottom Panel (LTE5388-S905)
Fig ure 6 Rear Panel (LTE5388-S905)
LED

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LTE Series User’s Guide
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1.5.1 LEDs (Lig hts)
1.5.2 Pa ne l Po rts & Butto ns
The connection ports are located on the bottom/rear panels.
The following table describes the items on the bottom panel.
Table 2 LTE7461-M602 / LTE7480-S905 / LTE7485-S905 LED Descriptions
C O LO R STA TUS DESC RIPTIO N
Red Blinking The Zyxel Device is booting or self-testing.
On The Zyxel Device encountered an error.
Green Blinking The Zyxel Device is trying to connect to the Internet.
On The Zyxel Device is connected to the Internet.
Amber Blinking The Zyxel Device WiFi is on.
Table 3 LTE5388-S905 LED Descriptions
LED C O LO R STA TUS DESC RIPTIO N
Power Green On The Zyxel Device is receiving power and ready for use.
Blinking The Zyxel Device is booting.
Off The Zyxel Device is not receiving power.
Internet Green On There is an Internet connection.
Off There is no Internet connection.
LTE Signal Strength Green On The signal strength is excellent.
Orange On The signal strength is fair.
Red On The signal strength is poor.
Blinking A valid SIM card is inserted, but no signal is detected.
WiFi/WPS Green On The wireless network is activated.
Blinking The WPS process is in progress.
Off The WiFi/WPS is not activated.
LAN Green On The Zyxel Device recognizes an Ethernet cable through the
LAN port.
Table 4 Panel Ports and Buttons
LA BELS DESC RIPTIO N
LAN For LTE5388-S905, connect an RJ45 cable to a computer to connect to the internal network In
using a LAN port.
WiFi Press the WLAN (WiFi) button for more than five seconds to enable the wireless function. To set
up a WiFi connection between the Zyxel Device and a wireless client, press the WPS button for
longer than five seconds for LTE5388-S905.
WPS After the wireless function is enabled, press the WLAN button for more than one second but
less than five seconds to quickly set up a secure wireless connection between the Zyxel
Device and a WPS-compatible client. To enable WPS, press the WPS button for less than five
seconds for LTE5388-S905.
RESET Press the button for more than five seconds to return the Zyxel Device to the factory defaults.

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1.5.3 Turning O n/ O ff WiFi
Use the WPS or WiFi/ WPS button on the Zyxel Device to turn on or turn off the wireless network.
Note: Use the WiFi function of the LTE7461-M602 / LTE7480-S905 /LTE7485-S905 / LTE5388-S905
for configuration (for example, connect to the LTE Ally app of your mobile device to
find the optimal LTE signal strength and manage your LTE7461-M602 / LTE7480-S905 /
LTE7485-S905 / LTE5388-S905).
Note: Wi-Fi is for local management use only.
Fig ure 7 LTE7461-M602 / LTE7480-S905 / LTE7485-S905 WiFi Button
Fig ure 8 LTE5388-S905 WPS button
To turn o n WiFi:
•MakesurethePO WER LED is on and not blinking. Press the WiFi or WiFi/ WPS button for more than 5
seconds and release it.
POWER Button Press the PO WER button after the power adapter is connected to start the Zyxel Device.
POWER /DC IN Connect the power adapter and press the PO WER button to start the Zyxel Device.
Reboot Press the RESETbutton for more than 2 seconds but less than 5 seconds, it will cause the system
to reboot.
SIM card Insert a micro-SIM card into the slot with the chip facing down and the beveled corner in the
top left corner.
Table 4 Panel Ports and Buttons (continued)
LA BELS DESC RIPTIO N

Chapter 1 Introduction
LTE Series User’s Guide
19
For LTE7461-M602 / LTE7480-S905 / LTE7485-S905:
Once WiFi is turned on, the LED blinks amber.
For LTE5388-S905:
Once WiFi is turned on, the LED turns green.
To a c tiva te WPS (WiFi m ust b e a lre a dy o n):
You can also quickly set up a secure wireless connection between the Zyxel Device and a WPS-
compatible client by adding one device at a time.
• Press the WiFi or WiFi/ WPS button for more than 1 second but less than 5 seconds and release it
(pressing more than 5 seconds will turn off WiFi). Press the WPS button on another WPS-enabled
device within range of the Zyxel Device.
For LTE7461-M602 / LTE7480-S905 / LTE7485-S905:
Once a wireless connection is ready, the LED blinks amber.
For LTE5388-S905:
Once a wireless connection is ready, the WPS LED blinks green.
To turn o ff the wire le ss ne two rk:
• Press the WiFi or WiFi/ WPS button for more than 5 seconds.
For LTE7461-M602 / LTE7480-S905 / LTE7485-S905:
The amber LED turns off when the wireless network is off.
For LTE5388-S905:
The WLAN LED turns off when the wireless network is off.
1.5.4 The RESETButto n
If you forget your password or cannot access the Web Configurator, you will need to use the RESET
button of the Zyxel Device as shown in the following figure to reload the factory-default configuration
file. This means that you will lose all configurations that you had previously saved. The password will be
reset to the default (see the Zyxel Device label) and the IP address will be reset to 192.168.1.1.
Fig ure 9 Reset Button (LTE7461-M602 / LTE7480-S905 / LTE7485-S905)

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20
Fig ure 10 Reset Button (LTE5388-S905)
1Make sure the Zyxel Device is connected to power and PO WER LED is on.
2To set the Zyxel Device back to the factory default settings, press the RESETbutton for 5 seconds.
Note: If you press the RESETbutton for more than 2 seconds but less than 5 seconds, it will
cause the system to reboot/restart.