Decmetrics ASLH308 지침 및 설정 매뉴얼 - 페이지 2

{카테고리_이름} Decmetrics ASLH308에 대한 지침 및 설정 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Decmetrics ASLH308 2 페이지. Gprs modem

4. Check the LED status indictors to make sure that the modem is operating normally and has good GSM

signal quality so that remote meter readings can be performed.

The GPRS signal quality will also scroll onto the meter's display automatically every 10 seconds. This should

be 13 or higher. Use a booster antenna to ensure the signal quality meets this threshold.

LED Status Indicators

The ASLH308 has 3 LEDS in the lower left hand corner of the module.

LED

Purpose

Red

Indicates network registration

status

Green

Indicates GPRS mode

Amber

Signal strength indicator

Thursday, 13 August 2015

DEC Metrics Ltd, Bronzeoak Business Centre, Bronzeoak House, Stafford Road, Caterham, Surrey, UK, CR3 6JG

Company Registration Number: 07865630 Vat Registration Number: 124 9033 33

Email:

Behaviour

1. Short pulse every 3 seconds – Registered with

network

2. Flashing every second – not registered on

network. Check SIM is present and signal quality

on meter display or using an analyser.

1. Very rapid blinking – GPRS mode

2. Alternating between rapid flash and slow flash –

AutoRegistration mode

3. Steady flashing – CSD call in progress

4. Slow blink – CSD mode, no call in progress

The longer the yellow led is on then the better the

GSM signal quality. Slow blink = poor signal.

Web:

www.decmetrics.co.uk

Tel: 07792 387173