Scantronic 808 Installationshandbuch Seite 1

…always there 3GSTU Subscriber Terminal Unit Installation Guide redcare Helpline: 0800 671 240

10 …always there assumed to have a REN value of 1.0 unless otherwise marked. If the STU is used with an MCD, the combined REN will be 1½. INSTA

11 …always there Important: THE ALARM SYSTEM MUST BE TOTALLY POWERED DOWN (SWITCH OFF MAINS AND DISCONNECT THE BATTERY) BEFORE INSTALLATION CAN

12 …always there The other end of this cable must be connected to a good electrical earth. Failure to fit an earth cable will prevent proper operati

13 …always there Mains Fail If an AC fail signal is provided from the power supply, this can be connected to one of the pin alarm input terminal

14 …always there Alarm Inputs For plug-in units, connections to the alarm panel are made by the two connectors which protrude through the base.

15 …always there 11 and AC Fail are made to terminals marked 9 though 12 of TB1 respectively. The connections are made in exactly the same way as f

16 …always there To use the RPS function, one of the alarm inputs must be designated as an opening/closing channel (usually channel 4). The RPS out

17 …always there The STU provides two different modes of local line monitoring, which can be selected when the NVM is programmed. The ARC must be

18 …always there Pin Alarm Polarity The pin alarm channels respond to the voltage level at the terminal block inputs (stand-alone mode) or the pins

19 …always there Input Switch Off On 1 Negative Applied Positive Applied 9 2 Disabled Enabled 3 Negative Applied Positive Applied 10 4 Dis

…always there CE MARKING The STU* carries the CE approval marking in accordance with the CE Marking Directive 93/68/EEC. The STU complies with

20 …always there YES YES No YES V1.3 # 001957 Press and the screen displays: MASTER NONE COPY 9314/C4

21 …always there 0 1 YES If the Control Relay is to be energised on power up press ……………………………….. If the Control Relay is to be not energi

22 …always there YES A 4 7 D A 6 0 B 0 1 8 0 5 YES 6 7 For all variants Press ……………. Key in the first two digits

23 …always there A 6 6 B A 7 0 B 1 8 1 8 Pressing the numbered key changes the setting of the polarity from 0 to 1, or 1 to 0. A state of

24 …always there STATUS INDICATORS LED Indication Normal state 1 (green) STU Status 1 Intermittent flash 2 (red) STU Status 2

25 …always there STU Status LED Meanings The status of the 3GSTU is indicated on the LEDs in priority order - highest first. Where a high prior

26 …always there During the commissioning procedure, the STU will be "upped" on the landline. Call the ARC, preferably using the same lin

27 …always there a) Disconnect the STU from the telephone line (both A and B connections). b) If the STU is connected to the PSTN, the Line Fault o

28 …always there TROUBLESHOOTING This section describes typical problems that may arise, the symptoms, possible causes and solutions. If you hav

29 …always there Line Type Earth Calling Line On Hook Atten. Off Hook Atten. Data Value at Address 33 Bit Value PSTN No 0 dB 0 dB 21 00100

…always there CONTENTS INTRODUCTION ... 4 Scope...

30 …always there Symptom Possible Causes Possible Solution Problems indicated on the STU Status LEDs Red STU Status LED Fast flash. a) NVM not

31 …always there Symptom Possible Causes Possible Solution ARC cannot commission the STU, and the phone line is otherwise OK. Green and red Statu

32 …always there Symptom Possible Causes Possible Solution The ARC is reporting the receipt of a channel 14 alarm. This is an internal alarm gene

Offices worldwide The telecommunications services described in this publication are subject to availability and

4 …always there INTRODUCTION Scope This document is provided to support professional installation of the BT redcare range of STU products: Model

5 …always there 7. Test the system (see page 26).

6 …always there 3GSTU OVERVIEW The 3GSTU is the Public Switched Telephone Network (PSTN) Subscriber Terminal Unit for the BT redcare service.

7 …always there 3GSTU-PLI The 3GSTU-PLI variant is a plug-in unit for mounting onto certain alarm panel motherboards. With the exception of the

8 …always there Specifications Power supply requirements: 3GSTU-12V, 11zstu Voltage: 10 V DC to 15 V DC Current: 160 mA mean @12 V DC (For stand

9 …always there Safety The circuit board area, under the cover, is classed as a Telecommunication Network Voltage (TNV-3) circuit. All other in