ZyXEL Communications LTE5388-M804 User Manual

Chapter 35 Troubleshooting
LTE Series User’s Guide
276
35.7 SIM Card
The SIM card cannot be detected.
1 Disconnect the Zyxel Device from the power supply.
2 Remove the SIM card from its slot.
3 Clean the SIM card slot of any loose debris using compressed air.
4 Clean the gold connectors on the SIM card with a clean lint-free cloth.
5 Insert the SIM card into its slot and connect the Zyxel Device to the power supply to restart it.
I get an Invalid SIM card alert.
1 Make sure you have an active plan with your ISP.
2 Make sure that the Zyxel Device is in the coverage area of a cellular network.
35.8 Cellular Signal
How should I position the Zyxel Device to get a strong cellular signal?
1 Find the location of your nearest cellular base station(s), then install the Zyxel Device towards the
direction of those sites. The nearest site or site with a direct line-of-sight is usually preferred.
Note: It is best to test towards more than one cellular site, as the nearest site / line-of-sight is
not always the best due to the terrain, interference, density of usage, etc. All of these
factors influence the stability, availability and throughput of the link to the Zyxel Device
.
2 Position the Zyxel Device towards a direction where coverage is expected (example the nearest town).
3 Conduct test measurements using the Web Configurator’s System Monitor > Cellular WAN Status screen
to obtain a report of the cellular network signal strength and quality at various test positions.
Note: It is best to reboot the Zyxel Device before each test measurement is taken to ensure
that it is not camping on the previous cellular site. This is because the Zyxel Device can
‘lock’ onto the previous cellular site even when the new cellular site is at a much better
signal level and quality.

ZyXEL Communications LTE5388-M804 Specifications

General

DSL WAN	No
Ethernet WAN	Yes
WAN connection type	RJ-45
Wi-Fi band	Dual-band (2.4 GHz / 5 GHz)
Wi-Fi standards	802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac)
Top Wi-Fi standard	Wi-Fi 5 (802.11ac)
WLAN data transfer rate (max)	1733 Mbit/s
WLAN data transfer rate (first band)	300 Mbit/s
Networking standards	IEEE 802.11a, IEEE 802.11ac, IEEE 802.11b, IEEE 802.11g, IEEE 802.11n
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Ethernet LAN interface type	Gigabit Ethernet
4G standard	LTE-TDD & LTE-FDD
3G standards	HSPA+, HSUPA, WCDMA
UMTS bands supported	850, 900, 1800, 2100 MHz
USB 2.0 ports quantity	1
Ethernet LAN (RJ-45) ports	2
MAC address table	64 entries
Security algorithms	WPA, WPA2
Supported network protocols	IPv4/IPv6
Product type	Tabletop router
Product color	Grey, White
LED indicators	LTE, Power, USB, WLAN
Power source type	DC
Power consumption (typical)	24 W
Certification	CE, WEEE, RoHS, HSF
Storage temperature (T-T)	-30 - 70 °C
Operating temperature (T-T)	0 - 40 °C
Storage relative humidity (H-H)	5 - 95 %
Operating relative humidity (H-H)	10 - 90 %
Cables included	LAN (RJ-45), Phone (RJ-11)
Package type	Box
Package depth	170 mm
Package width	247 mm
Package height	120 mm
Package weight	1600 g
Harmonized System (HS) code	85176990

Weight and Dimensions

Width	100 mm
Height	205 mm
Weight	599 g