Guide to Railway Telephones Guide on what phones are in use including new types, the new KETS system, information and accessories.

Size: px

Start display at page:

Download "Guide to Railway Telephones Guide on what phones are in use including new types, the new KETS system, information and accessories."

Edwina Kathlyn Riley
6 years ago
Views:

1 Guide to Railway Telephones Guide on what phones are in use including new types, the new KETS system, information and accessories. F. M. Spowart v2.1 Sept 2016

2 Guide to Railway Telephones Page One of Nine Telephone Categories: Railway telephones come into five different categories: 1. CB: Central Battery: These are the most common and are operated by simply lifting the handset*, they are powered remotely via the line wire. 2. MAG: Magneto: These contain batteries to power the circuit, but are still operated the same as the CB type above. Sometimes referred to as LB for local battery, these are becoming less used. 3. AD: Autodial: These have a keypad in which the user enters a number* to call the required location. These are generally connected to a remote telephone exchange. 4. MD: Monodial: These are similar to the CB or MAG, but the user lifts the handset and presses a button which dials a preset number stored in the memory. 5. PETS: Public Emergency Telephone System: These are similar to the above types, but have extra connections which fully monitor features such as handset damaged, off-hook, charger fail, ringer fail etc. 6. KETS: Kestrel Emergency Telephone System: This is an updated version of the PETS system above by GAI-tronics. *Some phones may require a single button to be pressed. Types (old and modern): Over the years the telephones have progressed from a few different types to an extensive range, some still used, some obsolete. The main phone manufacturers and types today are: GAI-tronics Titan series and DAC RA series. The now least popular ranges are: Plessey 745, Racal RA 705 series, DAC series (heavy bodied type), DAC Commander (mainly used inside control rooms) and the STC selective. Other phones of some type may still be used. The phones are either coloured Goose Grey (SPT s, Point Zone phones etc), or Canary Yellow (for level crossing public use). Both sides of a crossing MUST have the same style of phone. The S.M.A.R.T. option is available on some phones, this stands for self-monitoring and reporting telephone. To give you a perspective on what some of the weather resistant phone cost, the Racal RA 708 (grey) series costs , the Titan (yellow) phone costs All prices include VAT! Source: (2010) Please note that phones and catalogue numbers may be regularly updated or withdrawn.

3 Guide to Railway Telephones Page Two of Nine Standards: Document NR/L2/TEL/30143 (June 2010) list the relevant standards for lineside telephones specification. Here are just a few important specs listed. Ring voltage: 30v to 100v rms. Line voltage: 20v to 70v DC (20v to 57.5v for PETS system). 15mA minimum loop resistance (off-hook). Public intended use phones must have inductive coupling for hearing impaired people. All external line cables shall have an external diameter of 7 15mm. The line cable conductor size shall be between 0.5mm 0.9mm. Press to call buttons shall initiate a call, but must not disconnect the handset whilst the button is pressed. The background noise level in which the speech will not be impaired is 70dB (an equivalent of a large idling lorry with a diesel engine). All label fonts should be in San Serif and a minimum of point 10, black text on white label. SPT s shall be positioned so the user can see all of the elements of the signal, and permit the user to operate the telephone whilst standing up (approx m high). Special care is needed if the phone operator will foul the line; for instance limited clearance phones. See special instructions for this type. Unauthorised entry using standard screwdrivers or pliers should not be possible. NO additional holes shall be drilled into the mounting plate. MINIMUM bending radius of the tail cable is; 12 X diameter of cable used. The following cable colour is used for all phones (although not all may be used): Pair A leg B leg 1 Orange White 2 Green Black The twist in the pairs shall be maintained and either pair can be used if other pair is faulty Labelling: This should be applied to all phones. Labels which must be attached are; Phonetic Alphabet, Lift Handset or Press button instructions, the OS grid reference of the exact location, the location of which the phone will call, the point number, signal number or LC name at which the phone is at. The appropriate SPT or point zone phone (PZP) stickers shall be attached to the external side of the door. Yellow LC phones must have the black phone on yellow background label applied. The NOT FOR 999 CALLS sticker MUST NOT be applied to public emergency telephones, these are only used for phones such as; local control phones at level crossings, platform ready to start telephones etc. (ALWAYS Check local documents before attaching this sticker). The limited clearance sticker shall be applied if applicable to the location. Any other relevant sticker required for that location. (Again check local documents). LC phones MUST also have an alternative 24hr national emergency phone number including the area code for if the signalbox closes or the phone is found to be faulty/damaged and unuseable.

Guide to Railway Telephones Page Three of Nine Types of modern and

GAI-tronics Titan series Type AD Colour Yellow Use at LC s (but NOT

internal keypad, via PC program or over another phone Cat No

Buttons Recall button Power Four type D batteries (Take off front

CB Colour Grey Use at SPT, PZP etc Buttons None Standard type now

4 Guide to Railway Telephones Page Three of Nine Types of modern and older phones (that may still be in use): Cat No 87/ Make GAI-tronics Titan series Type AD Colour Yellow Use at LC s (but NOT for PETS ) Buttons One (with Number 1)~ ~ Number programmed via internal keypad, via PC program or over another phone Cat No 87/ Make DAC Type MAGNETO Colour Grey Use at SPT, PZP etc Buttons Recall button Power Four type D batteries (Take off front to access them) Cat No 87/ Make GAI-tronics Titan series Type CB Colour Grey Use at SPT, PZP etc Buttons None Standard type now used by NR Cat No 87/ Make DAC Type CB Colour Grey Use at SPT, PZP etc Buttons None

Cat No 87/037961 Make GAI-tronics Titan series Type Xing Colour Yellow (with blue label) Use at LC PETS only system Buttons One push to call

For the new KETS system, order specific phone with Cat Number: 87/038055.

Cat No 87/000660 Make DAC RA 708 series Type CB Loop Colour Grey Use at SPT, PZP etc Buttons One push to call For yellow LC type, but NOT for

87/000659 Standard type now used by NR, however the push to call button has been removed Cat No 87/037885 Make DAC RA 708 series Type MAGNETO

5 Cat No 87/ Make GAI-tronics Titan series Type Xing Colour Yellow (with blue label) Use at LC PETS only system Buttons One push to call Illumination LED illuminated Guide to Railway Telephones Page Four of Nine Standard type now used by NR Designed specifically for PETS I and II For the new KETS system, order specific phone with Cat Number: 87/ This has a burgundy coloured label below the handset as opposed to blue on the PETS style phones. Cat No 87/ Make DAC RA 708 series Type CB Loop Colour Grey Use at SPT, PZP etc Buttons One push to call For yellow LC type, but NOT for PETS use Cat No. 87/ Standard type now used by NR, however the push to call button has been removed Cat No 87/ Make DAC RA 708 series Type MAGNETO Colour Grey Use at SPT, PZP etc Buttons One push to call Power Three type C batteries (Remove black cap at bottom via small allen screws to access them) Cat No 87/ Make GAI-tronics Titan series Type CB Colour Yellow Use at LC s (but NOT for PETS ) Buttons None Standard type now used by NR Phones not of the standard type used today should be escalated for upgrade at the earliest opportunity.

Guide to Railway Telephones Page Five of Nine Other phones and accessories: DAC RA 708 series with BR number 1 key lock for high vandal areas Cat Number: 87/000650 DAC GSM-R series

html DAC universal bracket for converting GAI-tronics Titan phones to DAC RA708 series phones Cat Number: 87/000668 Go to the following webpage for datasheet: http://www.daclimited.co.uk/brochures/technical/087_000668%20co mplete.

6 Guide to Railway Telephones Page Five of Nine Other phones and accessories: DAC RA 708 series with BR number 1 key lock for high vandal areas Cat Number: 87/ DAC GSM-R series wireless phones See DAC website for various types, colours and details at: DAC universal bracket for converting GAI-tronics Titan phones to DAC RA708 series phones Cat Number: 87/ Go to the following webpage for datasheet: mplete.pdf DAC RA708 series phone without a door, for use when mounted inside a RR, MEH or AVH. Cat Number: 87/ DAC top of post bracket for RA 708 series phones available in grey or yellow. Cat Number: 87/ (grey)

Guide to Railway Telephones Page Six of Nine Other types of obsolete phones for reference only:

Make Gland Type: Brass Gland Type: S/Steel Titan series 54/000099 54/037050 DAC RA series

7 Guide to Railway Telephones Page Six of Nine Other types of obsolete phones for reference only: Plessey 745 Racal RA 705 DAC Commander STC Selective (Mechanical) (STC stands for Standard Telephones & Cables Ltd). Accessories: Cable Glands: The cable must be sealed correctly to stop water ingress. Make Gland Type: Brass Gland Type: S/Steel Titan series 54/ / DAC RA series 54/ / Allen Key sizes required to access wiring of phones: 3mm for Titan series phones. 5mm for RA 708 series phones. Installation/user Instructions web links (for the main types used today): Titan series: RA 708 series:

8 OFF 7 MIN 3 MIN Guide to Railway Telephones Page Seven of Nine Specific functions/features present on some (but not all) phones: Function/Feature Usually set to (if applicable) Used for Battery Enable switch (Mag Connects/disconnects internal Enabled type only) battery Mute before dialling Enabled Mutes microphone until dialling has taken place Call time out link See Below Set to terminate call after a predetermined limit (if phone left off the hook) Loop disconnect NA Impulses used to call a number (most phones now use DTMF) Time break recall (TBR) To break the call and try again Earth Loop Recall (ELR) Switchable between three without hanging up handset Switch Hook Flash DTMF (Dual tone multifrequency) [or LD ] REN (Ringer Equivalent Number) NA NA Tones (as opposed to impulses) used to make the call (Touch- Tone phones) Number to determine how many phones will work on one circuit Call time-out link: The time-out link is an automatic on-hook facility where the phone, if left off the hook, will time out after a chosen time. For SPT s and PZP s this should be set to 7 minutes, for level crossings this MUST be set to 3 minutes, excluding PETS & KETS see below. At level crossings a driver is given permission to cross, they will then cross and should call back to say they are clear. However if the crossing over takes some time and the phone had the time-out link set to 7 minutes or OFF, the phone would be in an idle standby state and if the driver doesn t replace the handset and re-establish a call to say they are now clear, they could get impatient and simply drive away, and trains would then need to be cautioned. PETS & KETS phones are different and OFF/disabled should be selected as these have a built-in automatic off-hook time of 10 minutes. These phones also have a button to call, so it s highly likely a driver will use it to re-establish a call. A time-out link is moved to the required position to select the time and on/off position (if fitted). See the diagrams below. ON 3 MIN OFF 7 MIN On DAC RA 708 style phones On Titan style phones Move the link so it is in the middle of the writing to select the setting required.

9 Phone wiring and terminations: Guide to Railway Telephones Page Eight of Nine Various phones come with 3, 4 or 5 pin plug-in connections. Connect the wiring as follows: 5 Pin phones: Orange to PIN 1 White to PIN 5 Loop PINS 2 and 4 together or the phone will not ring. 4 Pin phones: Orange to PIN 1 White to PIN 4 Loop PINS 2 and 4 together or the phone will not ring. 3 Pin phones: Orange to PIN 1 White to PIN 3 No loop required. Obsolete RACAL RA708 older style push button phone: These should be now removed, however if you are called to a fault and the cable requires re-terminating or renewing until a upgraded phone is fitted, connect wiring as follows: Connect tail cable to PINS 1 & 6 Loop PINS 7 & 8 together. PETS MK 1 & 2 only: Connect the wiring as follows: A leg wire B leg wire 1 Common 2 N/O 3 N/C 4 Earth (recall) 5 Capacitor 6 Shunt 7 Handset/Light loop 8 9 B wire 10 A wire Push Button PETS MK 3 only: Yellow wire Black wire 1 A wire 2 Earth 3 B wire Important: LC phones MUST always be connected with their own tail cable. They MUST NOT be linked from another phone. Report any phones wired incorrectly immediately.

10 Guide to Railway Telephones Page Nine of Nine PETS and KETS: PETS (Pubic Emergency Telephone System) was originally introduced as a more comprehensive self-monitoring phone; however some variations of phones are now obsolete. Mark 1 phones are now obsolete, and Mark 2 phones are used on crossings with four or more phones. Mark 3 is the current type of PETS phone in use today. KETS (Kestrel Emergency Telephone System) is the newest style of system and phones in use today of which it is not interchangeable with the PETS system or phones. Basic S&T Faulting procedures: The S&T department now cover all telephones on the lineside including the actual phone and tail cable up to the loc or stump box at where it is terminated. Telecoms cover the main cable into the stump box or loc. Depending on the fault, the S&T will usually go to the phone first and check for ringing, hearing and speech. Some faults can be rectified simply by checking the plug points inside the phone or loose/broken cores. It is a good idea to use a test phone on the tail cable at the phone and then the loc to see if the phone is actually faulty. If the phone seems OK, and the phone is a MAG type, check the batteries in the phone, for all other types the line voltage should be checked at the phone and loc, this should be between 20 & 70v DC**. A lower voltage will affect the volume of the phone, so this could be the cause of the fault. If voltage is present at the loc and not at the phone the tail cable is faulty. If voltage in loc is out of spec or dead, the fault is passed to Telecoms to deal. Depending on the phone and the fault, the handset part or backplate containing the circuit parts can be changed instead of the whole phone. Spare unused parts must be returned and labelled as a working spare. P.E.T.S or K.E.T.S type systems will give a code to the signaller to give the state of the fault and possible cause. **This may depend on actual phone used, some phones have a min and max limit. Network Rail Maintenance Specifications: TEL/30084/A TEL/30084/B TEL/30084/C TEL/30084/D TEL/30069 Signal Post Telephone Level Crossing Telephones Automatic Barrier Level Crossing Telephones Operational Telephones Inspection and Minor Maintenance of Lineside S&T Cable Routes This document is uncontrolled. It is NOT endorsed by Network Rail, nor is it for commissioning or testing purposes. The relevant Network Rail documents MUST be used for this. This document is subject to possible omissions and/or errors, therefore the author cannot be held responsible for any incidents related to railway telephones. Always follow SMTH for testing procedure. Created & written by F. M. Spowart Network Rail S&T v2.1 Sept 2016

Useful Notes: Guide to Railway Telephones

Useful Notes: Guide to Railway Telephones Copyright F. M. Spowart These notes are uncontrolled and NOT Network Rail endorsed, they are for information and guidance ONLY, NOT for testing or commissioning