NTI ENTERPRISE ENVIRONMENT MONITORING SYSTEM
17
Modem Connection
The ENVIROMUX includes support for a GSM modem to send alert notifications via SMS to a cell phone if desired. Either a USB
GSM modem (all
models) or a serial GSM modem (E-16D/-5D only) may be connected. Using a modem each user can receive
SMS alert messages directly on their cell phone. When a USB 3G modem is used, SMS alert messages, all email messages,
and web interface control over the ENVIROMUX is possible. When a USB 4G modem in a 4G LTE network, only SMS alert
messages can be sent.
USB GSM Modem
To use a USB GSM Modem, a USB modem (with GSM SIM card configured for SMS messaging) can be connected to one of the
USB ports on the ENVIROMUX. The remaining USB Type A connector(s) on the ENVIROMUX is available for the connection of
a USB Flash Drive for data logging (pages 117 and 121).
Once installed, the ENVIROMUX will sense the modem and provide status information on the “Enterprise Setup” page in the web
browser (page 71).
The USB GSM modems that have been tested and are confirmed to be compatible with the ENVIROMUX include:
HiLink E303 3G Modem (NTI # E-3GU)
iCON GI1505(M) 3G Modem
E-Lins M300D or M300W Industrial USB Modem
(NTI# E-3GU-IND)
iCON GI0452 3G Modem
Zoom 4595 Modem Teltonica USB/G10 Modem
Huawei E3372h-510/153/607 (NTI# E-4GU-1/2/3)
Figure 17- Install USB GSM Modem
Cell phone SIM card for GSM modem
A SIM card or Subscriber Identity Module is a portable memory chip used in some models of cellular telephones. It can be thought
of as a mini hard disk that automatically activates the phone (or in this case the GSM modem) into which it is inserted.
SIM cards are available in four standard sizes. The first is the size of a credit card (85.60 mm × 53.98 mm x 0.76 mm). The next,
more popular “mini” version has a width of 25 mm, a height of 15 mm, and a thickness of 0.76 mm. The third, “micro” version
measures 15 mm x 12 mm x 0.76 mm, and lastly the “nano” version measures 12.3 mm x 8.8 mm x 0.67 mm.
Some cellular service providers use SIM cards. Verify with your service provider that their SIM card will work with GSM / 3G
GSM modems before making a purchase.
Your USB modem can be used for 3 different levels of functionality:
SMS Messaging Only
3G Data Transfer And SMS Messaging
3G Data Transfer, SMS Messaging, and Web Interface
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