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28 of 40

Issue 2

13/12/99

PETS-2 Crossing Telephone System

QUICKFIX INSTALLATION HANDBOOK

28

BLOCK 1 - the lower block, nearest the earth bar (pair1 to the left)

Pair

Signalbox

Level Crossing

Description

1a

Anode
com.

NA -Note 1

Remote Alarm Display - 7 segment display

1b

cathode D

NA

Remote Alarm Display - 7 segment display

2a

cathode C

NA

Remote Alarm Display - 7 segment display

2b

cathode G

NA

Remote Alarm Display - 7 segment display

3a

cathode B

NA

Remote Alarm Display - 7 segment display

3b

cathode E

NA

Remote Alarm Display - 7 segment display

4a

cathode F

NA

Remote Alarm Display - 7 segment display

4b

cathode A

NA

Remote Alarm Display - 7 segment display

5a

Button a

NA

Remote Alarm Display - Interrogate button contact,
normally open.

5b

Button b

NA

Remote Alarm Display - Interrogate button contact,
normally open.

6a

Input 1 &
Mains/
charger
alarm

Input 1 &
Mains/ charger
alarm

Line 1 control input. Connect to 0V to enable, shared
with power supply and charger alarm. This input is
forced to 0V by a parallel connected opto-transistor
when a mains/ charger alarm is activated.

6b

Input 2

Input 2

Line 2 control input (Line 2 card is required for this to
function). Connect this input to 0V to become active.

7a

Input 3

Input 3

Line 3 control input (Line 3 card is required for this to
function). Connect this input to 0V to become active.

7b

Input 4

Input 4

Line 4 control input (Line 4 card is required for this to
function). Connect this input to 0V to become active.

8a

+12V
fused,
100mA
limit

+12V fused,
100mA limit

Use this terminal for a local auxiliary supply. This
point is internally connected to the Output relays.
Note: the output relay can be commoned to 0V by
altering a link on the termination PCB.

8b

0V

0V

Use this 0V to activate Inputs 2 to 4

9a

Output 1

Output 1

This output is allocated to the mains/ charger alarm
from the distant site, and is configured to provide
+12V fused on this terminal in the event of mains/
charger alarm arriving from the other site.

9b

Output 2

Output 2

Line 2 control output, will 12V when Input 2
at the other site is connected to 0V. Line 2 cards
must be fitted at each site.

10a

Output 3

Output 3

Line 3 control output, will 12V when Input 3
at the other site is connected to 0V. Line 3 cards
must be fitted at each site.

10b

Output 4

Output 4

Line 4 control output, will 12V when Input 4
at the other site is connected to 0V. Line 4 cards
must be fitted at each site.

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Содержание PETS-2

Страница 1: ...x Installation Guide Whiteley Electronics Ltd Victoria Street Mansfield NOTTS NG18 5RW TEL 44 0 1623 415600 FAX 44 0 1623 420484 e mail wel eng dial pipex com AUTHOR S RADFORD DOCUMENT No G42278 APPROVED BY DATE 13 12 1999 ISSUE Professional Light Sound Association 2 part of the group of companies ...

Страница 2: ...ction Box will be bonded to an existing Telecommunication earth or to a dedicated ground spike In some instances the equipment may be fixed to a signalling frame where the case will be bonded by connection of the green yellow wire to the appropriate earth of the signalling equipment Under these circumstances the Telecommunications Earth within the Junction Box and the earth reference to the power ...

Страница 3: ... electro magnetic influences It is always advisable to avoid routing these cables near to power cables or other potential interference sources Provision is made within the Junction Box for earthing of the cables do so at the Junction Box end only Ensure there is a low impedance path to earth from the Telecommunications Earth within the Junction Box LIGHTNING A risk of lightning damage exists if th...

Страница 4: ...rossing Unit 13 4 3 1 Item 1 Connection Plate 14 4 3 2 Item 2 Connector Retention bracket 14 4 3 3 Item 3 Frame retention bolts 14 4 3 4 Item 4 Right hand access plate 15 4 3 5 Item 5 Front panel 15 4 4 Inside the case 15 4 4 1 Item 6 Transmission Card A33837 16 4 4 2 Item 7 Line cards A33838 Level Crossing A35173 Signalbox 16 4 4 3 Item 8 CPU card A33839 Level Crossing A35176 Signalbox 16 4 4 4 I...

Страница 5: ...ing Unit 24 5 7 Front panels 25 5 7 1 Signalbox front panel 25 5 7 2 Level Crossing Unit front panel 26 5 8 Wiring 27 5 8 1 Power supply 30 5 8 2 Local telephone wiring Level Crossing 32 5 8 3 Transmission Circuits 33 5 8 4 Miscellaneous Wiring 34 6 TECHNICAL DATA 35 6 1 Mechanical details 35 6 2 Electrical 35 6 3 Telephony 35 6 3 1 Telephone Circuits 35 6 3 2 Transmission 35 6 4 Environmental 36 ...

Страница 6: ...OX UNIT 11 FIGURE 2 PHOTOGRAPH OF LEVEL CROSSING UNIT 13 FIGURE 3 PHOTOGRAPH OF THE CARD FRAME 15 FIGURE 4 CARD REMOVAL TECHNIQUE 17 FIGURE 5 SIGNALBOX UNIT SHOWING LABEL INSERTS 25 FIGURE 6 LEVEL CROSSING UNIT FRONT PANEL EARTH TAG 26 FIGURE 7 INTERNAL LAYOUT JUNCTION BOX 27 FIGURE 8 POWER SUPPLY VOLTAGE SELECTOR APPLICABLE TO SB LC UNITS 31 ...

Страница 7: ...e Signal Box unit use the label as a membrane cover External connections are now made through QDF IDC connectors within an external junction box Connections from the PETS 2 equipment are made through D connectors to 2 metre connecting leads terminated on the QDF blocks Power supply design accepts higher voltage transient levels and the unit includes EMC filtering Card extractors included and stowe...

Страница 8: ...erminal and 2 metre green yellow wire 3 ACCESSORIES The following table provides information on the standard accessories available for use with PETS 2 WEL Part No Signal Box Crossing Description A33838 Note 2 Line Card for local telephones This Line card is identical to the original PETS Line card and is also used on PETS 2 but within the Level Crossing unit only A35173 Note 1 Line Card Signalbox ...

Страница 9: ...e with a seven segment display and Interrogate button This small enclosure is to be fixed onto a wall or concentrator The kit includes a ribbon connector assembly to be installed between the internal CPU and termination cards Also supplied is a 15 metre lead wired to the Remote Alarm Display The other end of the cable is to be terminated in the PETS 2 Junction Box Note 5 Battery sets of 6Ahr or 12...

Страница 10: ...e used throughout The equipment case has improved wall fixing with bumps to allow for irregular wall surfaces and to recess the fixing screw head The Euroframe is easier to remove from the case The auxiliary 12V dc supply is now independently fused Card pullers are provided with each unit and are stowed behind the front panel A stud for an Anti static wrist strap is now provided behind each front ...

Страница 11: ...ng enables the buttons on the cards within to be activated through the front membrane This presents a smooth wipe clean front panel with the advantage of having real push buttons Unused button locations are protected by a supporting disk behind the membrane at each unused location Lines 2 3 4 on a standard Signal Box Unit 4 2 1 Item 1 Connection Plate Shown in the photograph Fig 1 without connecto...

Страница 12: ...ion bolts The entire inner card frame is removable from the outer casing The two M6 hexagonal bolt heads at each side secure the frame within the case These bolts must not be removed unless the procedure described in section 5 4 is followed 4 2 4 Item 4 Right hand access plate The right hand access plate is equipped with a series of 20mm knockouts This plate is not usually required for standard in...

Страница 13: ...ely allow operation of the required LED s In the photgraph the paper label inserts can be seen behind each window c Service Provider Identification window an additional window is provided with access from the right hand edge of the front panel This window will be used to identify the Service Provider and fault notification telephone number Front panel layout is broken into functional sections and ...

Страница 14: ...o 4 2 1 However the following important differences should be noted a A foam rubber seal is provided around the D connectors of the Level crossing Unit to maintain the IP55 seal b The Junction box of the Level Crossing Unit is different to that of the Signal Box for instance there is no alarm sounder in the Level Crossing Unit Junction Box NOTE It is recommended that Silica Gel bags are inserted i...

Страница 15: ...edges Around the inside edge a strip of foam rubber sealing material is fitted when the front panel is fitted the seal is compressed by the edge of the case The front panel label allows all of the LED s within to be visible including the seven segment Fault Code display It is necessary to remove the front panel by means of the four fixing screws to access the Interrogate button to review multiple ...

Страница 16: ...rrangement for use with the membrane overlay This card houses the seven segment display and the system firmware The same version of firmware can be used throughout DIL switches on the motherboard distinguish the Signalbox and Level Crossing units additionally establishing whether the hardware is original PETS or PETS 2 4 4 4 Item 9 Power Supply Ringer Card A33898 There is a single Power Supply Rin...

Страница 17: ...nd lower hole at the front allowing both pullers to be used The Power Supply Ringer card has a lower hole only and the single puller must be angled to be central providing an even removal force Each card is polarised Ensure that cards are inserted in the correct slot Forcing a card into the wrong slot may result in damage to the connector pins 4 4 8 Item 13 Voltage selection link refer to section ...

Страница 18: ...Page 18 of 40 Issue 2 13 12 99 PETS 2 Crossing Telephone System QUICKFIX INSTALLATION HANDBOOK 18 ...

Страница 19: ... 2 10mm ring spanner 3 2mm Allen Key 4 Soldering Iron 15watt fine tip recommended and self fluxed solder 5 Screwdrivers flat blade various sizes 6 Scissors for labels 7 Wire cutters 8 Pen knife 5 2 Unpacking the equipment Check the external packing labels before proceeding to distinguish the Signal Box Unit from the Level Crossing Unit Use a small pen knife to open the carton sealing tape do not c...

Страница 20: ... the Card Pullers from their stowage location on the right hand side A Remove all eight M3 slotted head screws and their washers from the left hand Connection Plate and the Connector Retention bracket This plate may be lifted away from the D connectors IMPORTANT THIS PLATE MUST BE REMOVED BEFORE ATTEMPTING TO PULL THE CARD FRAME FROM THE CASE DO NOT UNDO THE FRONT FOUR M6 SLOTTED SCREWS b Loosen t...

Страница 21: ...RTANT CHECK TO ENSURE THE SCREW HEAD PROTRUDES NO MORE THAN 4mm ABOVE THE BACK PANEL OF THE CASE a It may be useful to temporarily fix with just two screws whilst trunking is fitted down the left hand side The cables from each connector exit towards the wall by fitting the Connection Plate the locations may be identified Plastic trunking is recommended with an end cap fitted to the top of the trun...

Страница 22: ... THIS GASKET IS A NECESSARY PART OF THE SIGNAL BOX UNIT SINCE IT ESTABLISHES THE DISTANCE BETWEEN CONNECTOR PLATE AND CONNECTOR PCB THE THICK FOAM RUBBER GASKET INSIDE THE CONNECTOR PLATE WELL IS ONLY USED ON THE LEVEL CROSSING UNIT Fit six M3 screws and washers exclude the middle two required by the Connector Retention bracket b Refer to section 5 8 1 and wire the 9 pin D connector onto an approp...

Страница 23: ...se circumstances the PETS 2 unit case will be bonded to the local safety earth of the signalling equipment and telecommunications earth will be kept isolated The hexagonal bolt and ring terminal are fitted with the following items and order M6 bolt split washer plain washer ring terminal crinkle washer case The green yellow wire is to be threaded through the Connector retention bracket and then in...

Страница 24: ... set as the terminating Signal Box i e not as an intermediate as part of a block switching scheme f Transmission circuits set for four wire operation g Data Update Intrude tone is applied and manual operation of the INTERROGATE button is required to update status 5 6 2 Level crossing Unit a Intrusion tone on I O change set to disabled NB In the original PETS this function was enabled The previous ...

Страница 25: ...minology used by the Signaller of each Level Crossing supported by the unit 3 Identification of unused Line circuits labelled Not Equipped A Word 6 document file is available with the labels already formatted and sized This file is available upon request by return of e mail Please request along with your name position company and phone number to the following address wel eng dial pipex com Simply ...

Страница 26: ...it should be possible to feel the cap pressing from behind central to the CALL button membrane area The CALL button should have a tactile feel a click should be felt The cap is screwed up or down to adjust this action IMPORTANT THE THREAD IS SEALED AT FACTORY IF THE SEAL IS BROKEN TOO MUCH ADJUSTMENT OUT WILL CAUSE THE MEMBRANE TO PERMANENTLY OPERATE THE BUTTON TOO LITTLE AND IT MAY NOT BE POSSIBL...

Страница 27: ...ilar wiring the following tables summarise the situation Figure 7 Internal layout Junction Box Sounder for equipment alarms Fitted to Signal Box JB only Cables to D connectors on the PETS 2 equipment External cables to telephone transmission circuits etc taken from this side of the QDF blocks Pair 1 end Tele communications protective earth Block 1 ...

Страница 28: ...nput Line 2 card is required for this to function Connect this input to 0V to become active 7a Input 3 Input 3 Line 3 control input Line 3 card is required for this to function Connect this input to 0V to become active 7b Input 4 Input 4 Line 4 control input Line 4 card is required for this to function Connect this input to 0V to become active 8a 12V fused 100mA limit 12V fused 100mA limit Use thi...

Страница 29: ...tact normally open 4a Alarm 2 O P a Alarm 2 O P a MAJOR alarm urgent volt free contact normally open Wired to the sounder in the Signalbox JB 4b Alarm 2 O P b Alarm 2 O P b MAJOR alarm urgent volt free contact normally open Wired to the sounder in the Signalbox JB 5a Block switch out input ve NA Opto isolated input ve side Apply 12V to 58V to activate Block Switch box closed transfer to distant 5b...

Страница 30: ...ire transmission Tx cct Leg b 7a NA NA T2 relay normally closed contact 7b NA NA T2 relay normally closed contact 8a T2 F NA Block switching 2 wire intermediate SB only 8b T2 E NA Block switching 2 wire intermediate SB only 9a T1 D NA Block switching 2 wire intermediate SB only 9b T1 C NA Block switching 2 wire intermediate SB only 10a T1 B T1 B Two wire transmission cct leg a 10b T1 A T1 A Two wi...

Страница 31: ... right hand side of the back plane motherboard just above the screw terminals The link is set as follows Link position Voltage range dc A B 20V to 35V B C 35V to 58V Figure 8 Power Supply voltage selector applicable to SB LC Units The Alarm circuit is an opto isolated input that may be used with a voltage in the range 20V to 58V When the input is powered an alarm indication is raised This input is...

Страница 32: ... Post telephones designed for use at level crossings will normally incorporate a bell capacitor and normal installation practise will allow the circuit to be wired directly to the telephone If domestic type telephones are used in the equipment room then a BT Master LJU is to be used to interface the telephone with the PETS2 line circuit IMPORTANT NOTE If overhead circuits are to be used or if circ...

Страница 33: ...oes not ring when the box is closed Some arrangement with automatic announcers will require the ABSENT switch to divert the line to the announcer unit 5 8 3 Transmission Circuits The Signalbox Unit and Level Crossing Unit have to be connected together via a transmission medium This medium may be physical copper or by means of a multiplexor D I Mux PCM link etc PETS2 may be configured for a 2 wire ...

Страница 34: ...t different times Circuit T2 is used for switching the transmission circuit under control of the Block Switch of an Intermediate Signalbox A dc control circuit is provided to allow for an input signal from a common Block Switch in the Signalbox Alarm Outputs Major and minor alarm outputs are available on volt free contacts for connection to automatic fault reporting systems SCADA External Call Sou...

Страница 35: ...ller due to different front panel arrangement WEIGHT 5 3 Kg COLOUR RAL7032 6 2 Electrical POWER SUPPLY 20V dc to 58V dc in two ranges CURRENT 0 425A 24V dc 0 25A 50V dc AUXILIARY 12V SUPPLY maximum load current 0 1A fused 0 1A OPTO INPUTS operating range 12V dc to 58V dc RELAY OUTPUT RATING 100V dc 0 3A 30V dc 1A 6 3 Telephony 6 3 1 Telephone Circuits REN RATING maximum of REN 2 per line MAX LOOP ...

Страница 36: ...ATH ATTENUATION 20dB resistive to guarantee DTMF operation but gain compensation is recommended if the loss is 10dB to maintain satisfactory speech performance 6 4 Environmental OPERATING TEMPERATURE 20 C to 50 C STORAGE TEMPERATURE 25 to 70 C ENCLOSURE PROTECTION BS54520 IP55 Level Crossing Unit only and its Junction Box should be protected from dripping water EMC EMISSIONS EN 55022 EMC SUSCEPTIB...

Страница 37: ...rey 3 1 5b GREY White 19 1 6a RED Blue 47 1 6b BLUE Red 45 1 7a RED Orange 43 1 7b ORANGE Red 41 1 8a Not connected to D connector See jumpers below 1 8b Not connected to D connector See jumpers below 1 9a RED Brown 48 1 9b BROWN Red 46 1 0a RED Grey 44 1 0b GREY Red 42 2 1a BLACK Blue 39 2 1b BLUE Black 40 2 2a BLACK Orange 49 2 2b ORANGE Black 50 2 3a BLACK Green 16 2 3b GREEN Black 14 2 4a BLAC...

Страница 38: ...BLUE Yellow Block 2 6b Block 2 4a WHITE Blue Block 1 8a Telecommunications Connection Lead 10 pair From Colour To Block 3 1a Not connected to D connector Spare 3 1b Not connected to D connector Spare 3 2a Not connected to D connector Spare 3 2b Not connected to D connector Spare 3 3a WHITE Green 25 way D pin 14 3 3b GREEN White 15 3 4a WHITE Brown 1 3 4b BROWN White 2 3 5a WHITE Grey 6 3 5b GREY W...

Страница 39: ...ETS 2 Crossing Telephone System QUICKFIX INSTALLATION HANDBOOK Page 39 of 40 Issue 2 13 12 99 39 From Colour To 3 0a RED Grey 7 3 0b GREY Red 9 Sounder Wiring Black to Block 1 8b Red White to Block 2 4b ...

Страница 40: ...l if the size is correct it should slide in easily and the white paper should fill the window area some alignment may be needed The Pull Tab part will stick out from the front panel edge Fold this part to the inside so as to trap this tab when the front panel is re fitted Assembly can be made easier by Sello taping the Pull Tab to the rear of the front panel The Pull Tab will be needed to remove t...

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