The SIGN-OPT Kit allows the upgrading of your CS8014 System to the last firmware release and to install the "Tones Generator" Card.

The driver for "Tones Generator" card (rel.2.2) enables the system to generate the most important Central Office Signals, as shown in the dedicated frame.

The Tones Generator and DTMF Generator Subtest both allow you to define the feeding conditions for the telephone terminal for the inductive type or resistive only feeding bridges.

The generated signals can be addressed either on the telephone line (normal operation in which the central office sends the tones or remote DTMF codes),  or to the output din1 to din 4, for acoustical devices in order   to simulate a beeper injecting it's signals to the telephone set microphone.

• Network Tone Generator :

1. This generates the most important central office tones such as dialing, ringing, busy, congestion or calling in progress tones. You can program other typical tone sequences or you may select from the pre-defined tone types.
   It is now possible to use the Network Tones Generator for the functional evaluation of devices which react with it.  You can also generate  frequency codes for Pulse Metering.
2. Tone sequences programmed with up to 6 single time elements;
   Normally, the twodifferent time elements T-on, and the two different time elementsT-off, can be programmed to obtain the standard tone cadence.  The two additional time elements, T-on0 and T-off0, used for the simulation of a first non-cyclic starting tone, can also be programmed. Some Administrations require this particular different first tone element that can be delivered either one time only, at the start of the tone sequence or  as part of the normal sequence, and then cyclically repeated.
3. Each active time element of the tone sequence is programmable in both frequency (Hz) and level (dBm).;
   The operation can include bi-tonal or tri-tonal sequence (special information tone) . The sensitivity of your telephone tone detector circuit can also be verified.

• DTMF Signal Generator :

1. The Network Tone Family includes the generation of DTMF signals;
   This function increases the test capability of  the CS8014 tester for the devices that receive the DTMF signals as remote control or coded data.

Calling Line Identification Presentation

Now, the CS8014 "Automatic FFT Telephone Test System" is able to test the modern Telephone Equipment having the "so called" CLIP function. But, what does the CLIP Function represent?
The Calling Line Identification Presentation is a function, offered by some modern PSTN's (Public Switched Telephone Network), able to transmit to the called telephone terminal the identification number or the name of the caller. Obviously, the called telephone terminal must be specialized for the CLIP, equipped with a receiver circuit other than a alphanumeric display for the CLI presentation.

• The ETS 300 659-1 rule defines the PSTN subscriber line protocol for display services, when the called telephone is in on-hook condition. The CLI is sent during or prior to the ringing, with the synthetic structure shown in the windows below.  There are two important kinds of  CLI data transmission protocols scheduled: the first, is accomplished by using the FSK-V23 subscriber line protocol; the second, uses DTMF signals to allow the continuation of use in those networks that already implemented a DTMF2 based subscriber line protocol. The first one is more widely used throughout the European PSTN telephone network.

• The ETS 300 659-2 rule, defines the CLI protocol when the called telephone is in off-hook condition during the conversation. The protocol is very different, as shown on the rear side table.

  Download PDF Document - Rel. March 1999 (100 Kb)

INCREASED TEST CAPABILITY OF CS8014

The above mentioned NEW function of the CLIP can be installed in all CS8014's if the SIGNAL-OPTION is already installed.  The new WIN8014 Menu offers the CLIP Family with two CLIP options: FSK-V23 or DTMF based.  The programmer can insert in the test sequence the wanted CLIP test. In order to test the FSK CLIP on a TE, it is necessary several parameters.  Therefore, to organize the necessary series of tests would be so difficult that it could seriously discourage the best skilled engineer! The solution is in the annexes of the ETSI 300 778-1 and ETSI 300 778-2 standards, containing a series of typical sequences of tests for a TE with CLIP. The WIN8014 programming window lets the engineer select the appropriate standard tests,  without the difficulty of adjusting all the parameters. As you can see from the programming window on the front page, it suggests the names of the normalized test procedures for each protocol,  listed on the annexes of ETSI 300 778-1 and ETSI 300 778-2 standards.

On the contrary, the DTMF based protocol doesn't require complex program activity.  The only choice that is needed is for the feeding bridge parameters other than the numeric message to be sent.  A "D" DTMF character is sent as the start-of-message, followed by the calling identifier, then, by a "C" character signaling the end-of-message.

On-Hook CLIP Typical Protocol
(ETSI-300-659-1)

• FSK-V23 Type - Permits the transmission of alphanumeric messages as caller number or name, time group, service messages or other types of messages.
• DTMF Type - Permits only the transmission of numeric messages as caller number.

Telephone Equipment Alerting Signal (TAS) :

• TAS represents the first phase of the CLIP protocol.
• After TAS,  the TE is alerted and changes it's idle state to get ready to receive the next data message. There are four kinds of TAS scheduled,  as listed on the left side window.
• The DTMF type CLIP accepts only the LR-AS ( Line Reversal polarity) for it's TAS.

Channel Seizure :

• The Channel Seizure is only present in FSK-V23 protocol. It consists of a series of 90 to 300 alternate SPACE/MARK bits. The purpose of the Channel Seizure is to prepare the TE to receive the next data message.
• The DTMF Based CLIP Protocol doesn’t use any Channel Seizures.

Signalling Data :

• The Signalling Data is the message of the CLIP Function.

Ringing :

• After receiving the message, the CLI   is shown on the TE display. Then, the ringing procedure begins (or continues if the Ring Call Signal was used as TAS).

• FSK-V23 Type only -Permits the transmission of alphanumeric messages as caller number or name, time group, service messages or other type of messages.

Telephone Equipment Alerting Signal (TAS) :

• TAS represents the first phase of the off-hook CLIP Protocol. TAS is sent by LE (Local Exchange) as DT-AS (see point 3 on-hook typical protocol).
• After TAS,  the TE mutes the voice paths, and returns a TE-ACK to the network (typically a DTMF "D"). The CS8014 measures all timings of this phase.
• After the TE-ACK has been recognized,  the FSK data is transmitted to the TE.

FSK data :

• Mark Signal - before the message, a series of mark signals are sent to the TE.
• Message - all the information is in alphanumeric order.
• After the FSK data transmission the TE restores the voice paths.