Datasheet

Hologram Nova Global IoT Cellular USB Modem
Data Sheet and Hardware Reference
Issue 04 (2018-09-07) Page: 9
LEDs
The Nova has two clear LEDs for providing power and connectivity feedback. A power
LED that represents whether the modem is on or off, and a network LED that indicates
the current network status.
Note: Nova LTE-M & NB-IoT modem and Nova 3G/2G modem have same placement of
LED color indicators but opposite use for power/network indication. Please use below
table for reference.
MODEL
POWER LED
NETWORK LED
Nova 3G/2G
Red
Blue
Nova LTE-M & NB-IoT
Blue
Red
• Power LED status indicator (Red – 3G/2G, Blue – LTE-M & NB-IoT)
o On: USB 5V is connected and the Nova is powered on
o Off: USB 5V is not connected and the Nova is not powered on (modem may
take up to 30s to boot up and power the LED)
• Network LED status indicator (Blue – 3G/2G, Red – LTE-M & NB-IoT)
o On, solid: Nova connected in active data session
o On, rapid blink: 3G network detected (3G/2G Nova Only)
o On, double blink: 2G network detected (3G/2G Nova Only)
o Off: No network detected
▪ Make sure antenna is securely connected, positioned to receive cell
signal and SIM properly inserted
▪ Device can take up to 200s to detect available networks