User's Manual

ADM Technical Description RFID-LSCAN
File: ADM UserMan.doc Page 6 of 12
Status: Rev1 Last Update: 9/21/2010 3:49:00 PM
1. OVERVIEW
ADM is a remote data collection device used to provide accurate last mile mail delivery
measurements. The ADM is placed inside a mailbox or above a mail door slot. When a test letter
(letter that contain a tag) is placed in the proximity of an ADM, the tag inside the envelope is
excited and its unique ID is read. The ID and the time of read are then transmitted to a backend
application over the GSM network using SMS.
The ADM concept is illustrated in Figure 1.
Test
Letter
Mailbox
GSM
Network
Backend
Application
ADM
Test
Letter
Test
Letter
Figure 1 – ADM Concept
1.1 Main Characteristics
Overall Dimensions (target)
- Length: 185mm (including battery pack)
- Width: 85mm
- Height: 20mm (with small battery pack)
Reader
- 433MHz receiver, Integrated antenna
- 125kHz transmitter, Integrated antenna
GSM Modem
- 2-Watt EGSM 900/GSM 850 radio section
- 1-Watt GSM 1800/1900 radio section
- Integrated antenna
Data Backup
- USB Flash Drive
Digital Interface
- Micro B USB receptacle for debug and service console
LEDs
- Power, Busy and GSM