Micro Seven Model LS15-1-ETS, Telephone Line
Simulator, provide simulated CO functions of modem and telephone sets testing
in engineering, manufacturing, and fields, and emergency telephone equipment. The
LS15-1-ETS contains dual frequency call progress tones, 20Hz sine wave ring
signal, programmable loop voltage, short primary or programmable secondary telephone number, caller-ID generation
and caller-ID on call-waiting generation for both Bellcore and ETS standards,
stutter dial tone, Visual Message Display messages, 1kHz test tone, distinctive
ring signals, and many other test tones. The LS15-1-ETS also contains
line-impairment mode with extra insertion losses and random noise added for
long-distance telephone lines. The programmable parameters include caller-ID
name and telephone numbers, privacy/out-of-area, single/multiple message
format, date and time, battery voltage of 20 or 40V, and many CW-CID
parameters. All the programmable parameters are restored back after the power
to LS15-1-ETS is turned. The LS15-1-ETS may also be operated by an external DC
source with Car Battery Adapter. A
carrying case, Car Battery Adapter, and 220V version of AC/DC adapter are
available as options. The LS15-1-ETS is also equipped with a forced-disconnect
feature where disconnect signals are sent to calling and called lines. The
duration of the disconnect signal is also programmable. Programmable network
response delay simulates time delay after completion of dialing. Simulated PBX
mode returns dial tone after dialing 9. The secondary call progress tone
generates a single-frequency tone instead of dual-frequency call progress tone.
Switching between ETS and Bellcore modes is possible by using control software
provided. Caller-ID data transmission during and prior to ringing with CAS and
ringing alert signal is supported. DTMF caller-ID transmission during ringing
period and prior to ring is also included.
Dialing:
Telephone
numbers:
1.
Primary telephone number: selected by dialing 043 or line1 or 2 as a factory
default.
2.
Secondary telephone number: selected by dialing 044.
A secondary telephone number is same as a calling number in caller-ID.
Warning: Using secondary telephone number in a privacy mode is
prohibited.
Please read section 4.3 Programming of Caller-ID Parameters for details.
DTMF
dialing signal power: -13dBm to +5dBm per a frequency with no more than 4dB
difference between
frequencies.
DTMF
dialing detection time: 45 ms
Pulse dialing:
Break period: 45 to 75 ms (60 ms nominal)
Make period: 30 to 60 ms (40 ms
nominal)
Simulated PBX Mode:
By
dialing "9", dial tone returns when the Simulated PBX Mode was
selected.
Dialing
"0#252*004*" for Simulated PBX Mode with dual frequency call progress
tone or
0#252*012* for Simulated PBX Mode with secondary call progress tone.
Note that
the regular dialing methods work as well here. For example, if the
secondary
dialing
method with a telephone number of
3456789012and the PBX mode are enabled,
dialing
of 3456789012 or 93456789012 would ring the other line. To return to non-PBX
mode,
dial 0#252*000* with dual frequency call progress tone or dial 0#252*008* with
secondary
call progress tone.
Line Characteristics:
Input impedance at 1 k Hz: 600 ohms +/- 5%
Signal
Bandwidth: 150 HZ to 3.5 k HZ
Line Impairment Mode:
When a
number of 00 and line-number is dialed, line impairment circuit with additional
20dB
of
insertion loss and -55dBm of random noise are added to signals between line 1
and 2.
Random
noise amplitude is also programmable. Frequency attenuation characteristics and
envelope
delay distortion of signals are not affected.
Random noise amplitude programming:
0#168*nnn*
The random
noise amplitude is set at –55 dBm as a factory default value, but it may be
changed by
the above dialing method. The factory default value is obtained with nnn=011.
The
smaller number, the lower signal power.
i.e.
nnn=176 for –31 dBm, nnn=088 for -37 dBm, nnn=044 for -43 dBm,
nnn=022
for -49 dBm, nnn=005 for -61 dBm , nnn=000 for -67 dBm of random noise.
Non-impairment mode:
When a number of 09 and a line number is dialed, the insertion
loss between
lines
becomes only 1 dB, and the random noise is removed. This is the factory default
condition.
Battery-feed voltage (loop voltage):
Selection
between -20 or -40 volts:
1. -20 volts
mode is selected by dialing 041, and it is a factory default condition.
2. -40
volts mode is selected by dialing 042. The battery-feed voltage is changed to
-20 volt
mode
when called line is ringing or in its off-hook state (answered). When the
called line
hangs
up the line, the battery-feed voltage is returned to -40 volts.
Ring Signal:
20 +/- 2%
Hz sine wave. Normally 2 sec on 4 sec off with exception of distinctive ringing
features
programmed.
Amplitude:
67V RMS into open circuit. It is 66 V RMS into RN=0.1, 56 V RMS into RN=0.5,
48V
RMS into RN=1, and 40V RMS into RN=1.7.
According to the FCC-part 68 rule, the RN=7000/(equivalent resistive
value in ohms)
for
ring signal of 20Hz +/- 3%.
The ring
signal at a called line is disabled by dialing *0. To enable back to ringing at
a called
line, dial
*0 again.
Distinctive ring signal features:
The
following distinctive ringing pattern is enabled instead of standard 2 sec on/
4 sec off
ringing
pattern:
(a).
Dialing 0 * 1 + (line number): 2 sec on/ 4 sec off (default condition)
(b). Dialing 0 * 2 + (line number): 0.8 sec on, 0.4 sec off,
0.8 sec on, 4 sec off
(c).
Dialing 0 * 3 + (line number): 0.4 sec on, 0.2 sec off, 0.4 sec on, 0.2 sec
off, 0.8 sec on,
4 sec off
(d).
Dialing 0 * 4 + (line number): 0.3 sec on, 0.2 sec off, 1 sec on, 0.2 sec off,
0.3 sec on,
4
sec off
Off-hook impedance requirement: 400 ohms maximum
DC, 600 ohms nominal AC
Call Progress Tones:
Standard
dual-frequency call progress tones: nominal -16 dBm.
Dial
Tone: 350 Hz + 440 Hz, continuous unless programmed for stutter dial tone
Ring-back Tone: 440 Hz + 480 Hz, 2 sec ON/4 sec OFF.
Busy Tone:
480 Hz + 620 Hz, 0.5 sec ON/0.5 sec OFF.
Accuracy in frequency component: +/- 1%.
Secondary
Call Progress Tones: (480 Hz +/- 1%)
Dialing 07 enables the secondary call progress tones. Instead of
generating dual
frequency call progress tones, single-frequency tone of 480 Hz is
produced with signal
power
of –18.5 dBm. Dialing 07 switches back to the dual frequency call progress
tones.
Stutter dial tone:
Dialing
046 enables stutter dial tone with three of 0.1 seconds on/off period following
with
continuous
dial tone.
Dialing
045 disables the stutter dial tone. It is a factory default condition.
Line Input Jacks: USOC-RJ11-C, standard
modular phone jacks
Power Switch: on when the switch is pushed in, off when the
switch is pushed out.
Hot Line Mode:
Dialing 06
enables the Hot Line mode, which calls the other line without dialing a number.
To
return to
non-hot-line mode, dial 06 during the first 0.5 seconds right after off-hook.
Network response delay:
Time delay
between the end of dialing and ring-signal application is programmable by the
following
dialing:
0#170*nnn*, where nnn is a 3-digit decimal number between 1 and 255. The
time delay is
determined by 8.6 ms x (nnn-1). The number, nnn, should not be zero.
The
factory default is 0 seconds.
Forced called-party disconnect:
When two
lines are connected and one line hangs up, disconnect signal is generated to
both
lines.
Programmable disconnect signal:
The
disconnect signal, which is interruption of loop current at the end of call
when one line
hangs up
is programmable by the following dialing:
0#169*nnn*, where nnn is a 3-digit decimal number between 1 and 255. The
time delay is
determined by 8.6 ms x (nnn). The number, nnn, should not be zero.
The
factory default is 320 ms.
AC/DC Adapter: 117VAC +/- 5%, or 230VAC
+/- 5%(for 220V power option), or 90-250V (international power supply option)
AC/DC Adapter or Car Battery Adapter input (also as a battery
charger): 12VDC
unregulated, 800mA maximum
Line
Status Display: red LED for each line to indicate off-hook
status (continuous on)
or ringing
status (blinking)
Calibration: not required
Power On Indicator: green LED display on front
panel
Dimensions: 19 cm (4") W x 4.5 cm (1.75") H x
10 cm (7.5") L
Weight: 500g (1.1 lbs.)
Environmental: Operating temperature: 0
to 35 degree C, Humidity: 85% RH at 35 degree C
Warranty/Service: 6 months
limited warranty. No warranty if any factory seal is broken.
Service is
performed at the factory, usually within 5 working days.
On-hook and off-hook (call-waiting caller-ID) caller-ID FSK
Generation:
Single
message and multiple message-format caller-ID FSK generations are supported.
Programming parameters includes telephone number, name, date and time,
telephone
number
length, name length, privacy/out-of-area, call qualifier on/off, visual message
on/off,
marking
period before FSK data, silence period after the first ring, continuous
caller-ID
generation
on/off, and wrong checksum generation on/off.
No ring signal is
produced
for the visual messages. It also includes an FSK data expansion capability of
caller-ID data.
CAS and ringing alert signal originated FSK data transmission is included.
Caller-ID Signals:
Signal power: -14dBm into 600 ohms
Dialing 048 repeats caller-ID sequences. Running
control software, LS15G.EXE, is required to switch caller ID mode between
Bellcore and ETS modes.
1. Bellcore mode:
Frequencies: 1200Hz +/- 2 Hz, 2200Hz +/- 5Hz
2. ETS mode: Frequencies: 1300 Hz +/- 2 Hz, 2100Hz
+/- 5Hz
DTMF caller-ID
signals:
During ringing and prior to ringing transmission in
ETS standard is supported. The DTMF transmission starts “D (caller’s telephone
number) C”. The timing of DTMF on period and off period is programmable.
Programmable parameters for caller-ID:
01 + Date
+ Time, i.e. 0106011230 for 12:30 A.M., June1.
02 + (line
number) + (telephone number), i.e. 0225035551212 to assign 5035551212 for
line 2.
The programmed number is the same as the secondary telephone number.
A
caller-ID display with a re-dial feature can dial a calling line.
02 + (line
number) + *, to assign private status.
Caution:
The caller-ID number, which is secondary telephone number, will be destroyed by
setting privacy mode; therefore, the caller-ID number must be
reprogrammed again.
02 + (line
number) + #, to assign out-of-area status.
Caution:
The caller-ID number, which is secondary telephone number, will be destroyed by
this action; therefore, the caller-ID number must be reprogrammed again.
03 + (line
number) + (3-digit ASCII)*(3-digit ASCII)*------
i.e. 0
3 1 0 7 7 * 0 7 3 * 0 6 7 * 0 8 2 * 0 7
9 *0 ------- to assign MICRO--- for
line 1 name.
All
characters must be entered to program a complete name. ASCII equivalent of
characters are found in Appendix C, ASCII TABLE.
Multiple-message format: * 1
Single-message format: * 2
Multiple-message format without directory number: * 3
Wrong check-sum generation: * 4
Reset
by the above *1, *2, or *3
Visual message waiting ON : * 5
Reset
by the above *1, *2, or *3
Visual message waiting OFF : * 6
Reset
by the above *1, *2, or *3
Silence
period right after the end of the first ringing period before a caller-ID
sequence: * 7 n,
where total
time is n times 100 ms. “0” is considered as a decimal number of ten. The
factory default is 500 ms.
The ring signal may be turned on/off by dialing * 0.
Call qualifier (long distance indication) on/off: *#
Telephone
number digit: 0 # 1 7 8 * n n n *, where nnn forms a 3-digit decimal number.
The
default value is 10 digit. The maximum number is 18.
Name length is programmable by: 0 # 1 7 9 * n n n *
Continuous caller-ID generation may be enabled by dialing 0 4 8. To disable continuous
caller-ID generation, dial 0 4 7.
Programmable parameters for Call-waiting caller-ID:
SAS
duration (0#161*nnn*), CAS duration (0#162*nnn*), acknowledge period
(0#163*nnn*),
Caller-ID
Data Transmission Delay between DTMF reception and FSK data generation
(0#164*nnn*) are programmable. The call-waiting CID sequence is started
by dialing 0 5 *.
Dialing
048 repeats call-waiting caller-ID sequences.
Subscriber Alert Signal (SAS): 440Hz +/-2 Hz, -19dBm into 600
ohms
CPE Alert
Signal (CAS): 2130 Hz +/- 10Hz, 2750 Hz +/- 10 Hz, -20dBm into 600 ohms, tone
level
tolerance of +/- 1 dB per frequency.
Programming of marking period in caller-ID:
In the
on-hook caller-ID, the marking period before the FSK data is programmable by
0#166*nnn*. In the off-hook caller-ID (caller-ID on call-waiting), the
marking period is
programmable by 0#167*nnn*.
Programming of Channel Seizure Period: 0#165*nnn*
Programmed parameters memory and restoration of factory standard:
All operating parameters are saved in LS15-1-ETS memory when the
power is turned off.
Caution: The maximum
number of changing LS15-1-ETS programmed parameters is limited to
two million operations; therefore,
continuous programming of LS15-1-ETS parameters
should be avoided.
The
restoration of memory to the following factory standard is done by dialing 04#:
-Bellcore mode instead of ETS mode
-Select
primary (short) dialing method.
-Battery-feed voltage of -20V
-No
line impairment mode is selected.
-The
random noise amplitude is set at -55dBm for the line impairment mode.
-Continuous dial tone, not stutter dial tone.
-The
programmable telephone number and caller-ID telephone numbers if enabled, are
set
as
the following ten digits: line 1: 1234567890, and line 2: 2345678901
-Selects multiple message format display for caller-ID.
-The names of caller-ID parameters are
the following in 15 digits:
Line1: ABCDEFGHIJKLMNP, and Line 2: BCDEFGHIJKLMNOP
-The
time and date are set as 12:30 p.m., January 1.
-The
call qualifier is turned off.
-Marking period before FSK data: 160 ms (on-hook caller-ID generation),
70
ms (off-hook caller-ID display)
-Silence period after the ring: 500 ms
-Disable continuous caller-ID display
-Enable
caller-ID generation with ring-signal.
-SAS duration of 300 ms
-CAS
duration of 80 ms
-Acknowledgement timeout period of 160 ms
-Wait
time between DTMF reception and start of FSK data generation of 50 ms
-Channel Seizure Signal Length of 30 characters of hex55
-No network response delay
-Disconnect signal of 320 ms
-No
Hot-line mode.
-Dual
frequency call progress tones are selected instead of secondary call progress
tones.
Options and Accessories:
Polarity reverse relay option for line 2.
Carrying case
Car
Battery Adapter
230V input
AC/DC Adapter (117V input unit is a standard.
International power supply option for 90-250V input with four different
power plugs (US, UK, Europe and
Australia)
Tone consisting of 2130 Hz and 2750 Hz is generated in front of FSK data followed by ringing.
PC Interface:
9-pin D-sub connector with PC/LS15-1-ETS cable,
control software for programming caller-ID parameters and other telephone parameters
are included.
Please contact Micro Seven, Inc., 1095-K NE 25th Hillsboro, OR 97124
phone: (US) 503-693-6982
fax: (US) 503-693-9742