MR4110/ER4110/HR4110 Installation Guide
6
1 Introduction
The MR4110, ER4110 and HR4110 are compact IP routers that facilitate the transmission
of data over wireless GSM or 3G networks. The data rates and network types supported
depend on the model type.
GPRS (General Packet Radio System) is an IP-based data transmission service that runs
over GSM wireless networks. It is an “always-on” protocol which means that once the
router has “attached” to the network, data can be transmitted and received on demand,
i.e. it is not necessary to make a call first.
EDGE is an enhanced version of GPRS which offers increased data transfer rates.
UMTS and HSDPA are the 3
rd
generation (3G) of GSM wireless networks, and as such
have much higher data transmission rates.
GPRS/EDGE routing is ideal for applications that are characterised by frequent
transmission of relatively small amounts of data, e.g. ATMs (cash-dispenser), remote
monitoring and data collection (telemetry) and credit/debt card authorisation.
UMTS/HSDPA routing is ideal for larger amounts of data or for situations where the speed
of data transfer is critical. Typical applications include backup for broadband wireline
services, video transmission, etc.
HSUPA routing is available as an optional upgrade on the HR4110. HSUPA is able to
provide a much greater amount of upstream bandwidth than HSDPA. In addition, the
downstream bandwidth is increased too. This makes HSUPA ideal for live broadcast
quality video transmissions.
The routers can be configured either by using commands entered at the serial port (much
like a modem), or via the built-in Web interface. We recommend that you use the Web
interface whenever possible.
In addition to many standard LAN and Internet protocols such as PPP, the xR4110 series
products provide a combination of powerful but easy to use configuration, management
and diagnostic tools. This makes them simple and cost-effective solutions for migrating
existing terminal or telemetry equipment, which use wired networks (PSTN, ISDN, etc.), to
wireless operation.
1.1
Front Panel Features
The front panel of the unit incorporates the USB host connectors, eleven LED indicators
and the two SIM card-holders as shown in the following illustration (ER4110):
