Tel

Tel: 0118 933 2533

Fax: 0118 933 1224

email: sales@teelectronics.co.uk

THE JACKDAW

THE DEVIL'S HIGHWAY

MORTIMER WEST END

READING, BERKS RG7 2AD

The TE2914, AV SYSTEM "COMBI" UNIT

The Combi is a 2U rack mounting unit that provides the following functions:

Low Level Control of Mains Power to the AV System

Sequenced Power Up to avoid nuisance tripping of supply protective circuits

Controlled Power Down to allow clean shut-down of computer AV equipment

Timed Power Down to allow proper fan cooling of high power equipment

Flexible Interfacing to PCs and AV Control Systems

Video Generator to give a Black Video signal for quiescent Video Projectors (PAL I, no colour burst) and a separate Monochrome test signal

Low Voltage dc Power Outputs for peripheral equipment

The rear panel has has three standard BS1363 13A sockets

"PERMANENT"

"CONTROLLED" and

" DELAYED"

plus various low level connectors that give the facility for numerous remote control and status reporting functions.

In conjunction with the Video Generator Signals, dc Power Output capability and switch selectable operating modes, the TE2914 provides a highly flexible power control hub for an AV system.

LOW LEVEL CONTROL

Control of the power outlets is by front panel push button or by any number of external contact closures or open collector drives. Any "ON" command turns on the equipment but an "OFF" command may only request the turn off. The response to the turn off request depends on the mode of operation selected, as determined by rear panel switch settings or by connector linking. If open loop time-out mode is selected, the delay can be set to any time in the range 40seconds to 40minutes by the rear panel control.

Front panel indicators show the current status ("POWER ON" or "SHUTTING DOWN") and corresponding TTL level signals and LED drives are available for external control equipment or user control panels.

A volt free contact pair is provided to give a PC "sleep" facility. The contacts close momentarily at the turn-off request and can be used to put ATX PCs into "Sleep" mode.

MAINS OUTLETS and OPERATING MODES:

The rear panel has 3 BS1363 13A sockets:

"PERMANENT"
(OUTPUT 1)
"CONTROLLED"
(OUTPUT 2) and
" DELAYED"
(OUTPUT 3)

The PERMANENT output is always ON (assuming power is being fed to the unit).

The CONTROLLED output is turned on by the front panel switch or external command.

Following a repeat depression, ie a request to turn off, or an external off command, there are 3 alternative modes of CONTROLLED output turn off behaviour, C1 – C3:

Mode C1	turn off immediately on request
Mode C2	turn off a fixed time after the request (settable 40s to 40min)
Mode C3	turn off only after an external verify signal has been received

The DELAYED output turns on a few seconds after the controlled output.

There are 2 alternative modes of DELAYED turn off behaviour, D1 – D2:

Mode D1	turn off a few seconds after the turn off request,
Mode D2	turn off a few second after the Controlled output turns off

Each rear panel Power Outlet has an indicator to show when power is on.

Each of the three outputs can be loaded to 12A continuous, but the total load should not exceed 13A.

The controller is capable of controlling any type of load that can be connected to a standard 13A outlet. The outputs are switched by zero crossing SCR type Solid State Relays which give good symmetry and and a single cycle surge rating of 150A and so can be used with transformer loads and equipment with high inrush currents.

VIDEO GENERATOR

The Video Generator provides two simultaneous outputs to the rear panel BNC sockets, one a Black PAL I standard video signal ( no colour burst) and the other a choice of two monochrome test patterns.

The black signal provides a pseudo source for quiescent video projectors, so keeping timebases synchronised to a broadcast type source and keeping the image clamped to black.

The two monochrome patterns are

a 100% white screen or
an 8 section grey scale.

Selection is by the rear panel piano key switch.

The test signal provides a confidence check and allows white purity, picture size, horizontal linearity, brightness, contrast and focus to be set-up for broadcast type sources.

LOW VOLTAGE DC POWER OUTPUTS

Three dc Power Outputs are provided

A regulated output of +12V at 600mA dc.

An unregulated +15V dc output at 500mA

A regulated +5V dc at 200mA.

The 12V output will switch with the controlled mains output, but the 15V and 5V outputs are always on.

The 12V output is available on the 2.1mm low voltage connector and a Klippon 2-part connector. It is current limited and a short circuit will not affect the operation of the controller.

The 15V and 5V outputs are available on Klippon 2-part connectors.

NOTE: i) The total loading from all three sources should not exceed 700mA.

ii) None of the supplies is isolated from the Control or Video Generator circuitry.

CASE DESCRIPTION

The all aluminium case is 2U high and is designed for rack mounting. The rear panel of the TE2914 is clear anodised with black legend.The front panel is black anodised with silver engraved legend, but other finishes and custom legend can be supplied if requested. The overall depth of the unit is 160mm excluding mating connectors.

ACCESSORIES

The TE2914 is supplied with a 2.5m mains cable fitted with a BS1363 13A plug, fused at 13A, and with mating "D" range and Klippon connectors.

Other mains cable lengths can be supplied on request.

SPECIFICATION

Mains Input:	230V +/-10%, 50Hz. Must be supplied via the BS1363 fused plug supplied, or from a 15A protected circuit.
Input Connector:	IEC 320 (16A)
Switched load:	(2 skts) Max 12A rms; Zero crossing solid state switches.
Max total load: (3 skts)	13A rms
Output Connectors:	BS1363 13A
Housing:	2U Rack Mount Unit with Black Anodised Aluminium front panel and natural aluminium rear panel.
Depth:	160mm excluding mating connectors.
Control Inputs:	Front Panel push button on/off switch with electrical toggle action. External wired control via rear panel 25w "D" connector and Klippon 3.5mm 2 part screw terminal/spring clamp connectors (all mating connectors supplied). All control inputs are active low, ie a contact closure to ground/0V, or equivalent logic input, causes the function to occur. A logic 0 must be <1.5V; a logic 1 must be >3.5V or an open circuit. Maximum logic 1 input is +30V;Sink current is 0.25mA; Common is TE2914 0V; ie compatible with TTL and 5V CMOS logic and contact closure or open collector or open drain drives; inputs not isolated.
Control Output:	One isolated volt-free contact pair that closes for approximately 200ms at an "OFF" request. This can be connected to a PC to put it into "sleep" mode (ATX Mother Board types).
Status Outputs:	Two LED indicators in front panel on/off button (Green "Power ON" plus amber "Shutting Down") Status and LED drive lines on "D" connector and corresponding Klippon connectors. Status outputs are 470R from 5V. LED drive outputs are 330R from 5V ( ie 10mA into a typical single LED). Each Power Outlet has an adjacent green LED which indicates when power is present.
Power Up Condition:	The Power Up Condition is switched outlets OFF (ie the state after any significant mains supply interruption will be OFF).

MODE SELECTION

The different modes of operation can be selected by the MODE switch located lower centre of the rear panel. This has four piano style keys numbered 1 to 4, left to right. Keys 1 to 3 are concerned with Power Control and key 4 selects the Video generator pattern. Each switch is ON (=closed) when down. In the table X = don’t care.

POWER MODE	OUTLET	TURN-OFF BEHAVIOUR: TURN OFF-	Sw1	Sw2	Sw3	Sw4
C1	CONTROLLED	immediately on request	X	X	OFF	X
C2	CONTROLLED	a fixed time after the request *	OFF	X	ON	X
C3	CONTROLLED	only after an external verify signal	ON	X	ON	X
D1	DELAYED	5s after the turn off request	X	ON	X	X
D2	DELAYED	5s after Controlled output turns off	X	OFF	X	X

*Settable 40s to 40min from the rear panel.

NOTE: POWER MODE SELECTION can be by external input via the 25w "D" connector, provided Sw1, Sw2 AND Sw3 are SET TO OFF.

VIDEO MODE	PATTERN	Sw1	Sw2	Sw3	Sw4
V1	PEAK WHITE	X	X	X	OFF
V2	GREY SCALE	X	X	X	ON

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CONNECTOR PINNING:

NOTE:

A line title preceded by an exclamation mark denotes an active low function, e.g. !ON = a contact closure or logic 0 input causes a power ON.

ALL Klippon 2 part connector pins are numbered RIGHT to LEFT as viewed looking onto the rear panel. All are 3.5mm types.

LED DRIVES are 330R from +5V (approx 10mA for std LED).

STATUS outputs are 470R from +5V; 1=high=ON.

If external control of POWER MODE is required, MODE switches Sw1+Sw3 must be OFF (The MODE would usually be fixed in a given installation and so can be normally be selected by the switch settings).

CONNECTORS in order Left to Right looking at the rear panel:

The PWR connector is a 2.1mm Low Power type. The output is 12Vdc regulated with centre pin positive. Max load is 650mA. (See "Low Voltage dc Outputs", p3).

The CONTROL connector is an 8 way 2 part Klippon connector. It is designed to be connected to the AV System Control plate.

PIN

TITLE

REMARKS

1

!ON

Standard momentary command; turns power ON

2

!OFF

Standard momentary command; turns power OFF

3

0V

Common

4

!TOGGLE

Standard momentary command; alternately turns power ON and OFF

5

LED DRIVE 2

"ON", controlled output

6

0V

Common

7

LED DRIVE 1

"ON", command status

8

LED DRIVE 3

"SHUTTING DOWN" (present if Drive 2 is ON while Drive 3 is off)

The AUX connector is a 5 way Klippon 2 part connector that gathers together some miscellaneous control and status functions.

PIN

TITLE

REMARKS

1

!HOLD

Holds current state regardless of standard on/off commands

2

0V

Common

3

!FORCE ON

Turns power ON regardless of other inputs except FORCE OFF.

4

0V

Common

5

STATUS 2

Status of Controlled Power Outlet.1=high=ON. +5V via 470R

The REMOTE control "D" CONNECTOR

gathers together all the functions available separately on the other connectors and adds a few more:

PIN

TITLE

REMARKS

1

!FORCE OFF

Turns power OFF regardless of any other inputs or settings

2

!HOLD

Holds current state regardless of standard on/off commands

3

!FORCE ON

Turns power ON regardless of other inputs except FORCE OFF.

4

!OFF

Standard momentary command; requests power OFF

5

!ON

Standard momentary command; turns power ON

6

!TOGGLE

Standard momentary command; alternately turns power ON and requests power OFF

7

SLEEP CONTACT A

Closes to pin 9 for approx 200ms at an "OFF" request;

for PC sleep facility

8

+5V

Regulated supply; 200mA max load. Always present.

9

SLEEP CONTACT B

Closes to pin 7 for approx 200ms at an "OFF" request;

for PC sleep facility

10

!WAIT for FORCE OFF

If pin 14 is Lo, ignore Time-out and wait until FORCE OFF (=Sw1)

11

0V

0V/common/gnd

12

+12V

Regulated +12V; 600mA max load. Present when ON.

13

0V

0V/common/gnd

14

!MAINTAIN CONTROLLED

OP after OFF request

For the set time after OFF command, or

until FORCE OFF if pin 10 Lo (=Sw3).

15

LED DRIVE 3

"SHUTTING DOWN"*

16

E/Chassis

Connects to mains E via mains plug; connects to 0V via 1k resistor.

17

+15V

Unregulated approx 15V dc; max load 700mA. Always present.

18

STATUS 1

Status of On/Off request** (HIGH = ON)

19

LED DRIVE 1

As STATUS 1 (HIGH = ON)

20

STATUS 2

Status of CONTROLLED Power Outlet** (HIGH = ON)

21

LED DRIVE 2

As STATUS 2 (HIGH = ON)

22

0V

0V/common/gnd

23

0V

0V/common/gnd

24

0V

0V/common/gnd

25

0V

0V/common/gnd

* Goes high if POWER is ON while REQUEST is OFF, ie high if Status 2 is high while Status 1 is low.

** Because of Maintained Output facility, Status 1 and Status 2 need not be the same.

NOTE that FORCE OFF will over-ride any time-out that may be in progress.

The PC connector is a 2 part Klippon. Typically this would connect to the AV System controller.

PIN	TITLE	REMARKS
1	0V	0V/common/gnd
2	!FORCE OFF	Turns power OFF regardless of any other inputs.
3	STATUS 1	Status of User On/Off request

The PWR2 connector is a 4 way 2 part Klippon which has the following Power Outputs:

PIN	TITLE	REMARKS
1	+15V	Unregulated approx 15V dc; max load 700mA. Always present.
2	+12V	Regulated +12V; 600mA max load. Present when ON.
3	0V	0V/common/gnd
4	+5V	Regulated supply; 200mA max load. Always present.

The TE Electronics POWER CONTROLLER range:

The TE2914 is the top of the range of a trio of Power Controllers from TE Electronics. Also available are the TE2612 and TE3112 which offer reduced levels of functionality at lower prices. All have a fully compatible Power Control section using an identical rear panel 25w "D" connector. The TE2612 is the base level unit that offers "permanent" and "controlled" BS1363 outlets in a very compact wall mounted or free standing enclosure. The TE3112 offers the same facilities with the addition of a third sequenced"delayed" output. It is housed in a 2U rack mounting case. The TE2914 adds Video Generator, dc Power Supply, multiple 2-part connector and mode switch facilities.

OTHER AV SYSTEM PRODUCTS from TE ELECTRONICS:

We manufacture AV system niche products;

Computer Video Interfaces

Curtain/Blind Controllers

Special wall and floor Connector Plates

Infra Red calling and Control Systems

PA , Video and UHF Distibution Controllers, etc.

Please enquire with any requirements – if we don’t already do it, we almost certainly could do it!

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NOTE:	A line title preceded by an exclamation mark denotes an active low function, e.g. !ON = a contact closure or logic 0 input causes a power ON.
	ALL Klippon 2 part connector pins are numbered *RIGHT to LEFT* as viewed looking onto the rear panel. All are 3.5mm types.
	LED DRIVES are 330R from +5V (approx 10mA for std LED).
	STATUS outputs are 470R from +5V; 1=high=ON.
	If external control of POWER MODE is required, MODE switches Sw1+Sw3 must be OFF (The MODE would usually be fixed in a given installation and so can be normally be selected by the switch settings).