Specifications |
Interfaces |
Telephone system |
Modular telco |
Headset |
2.5 mm cell-phone type |
Ringer Equivalence |
In BELL mode |
0.0 (no ringer load) |
Pulse Dialing |
Pulse rate |
10 pps ± 10% |
Make/break ratio |
40% to 60% ± 2% |
Interdigit interval |
820 ms |
Resistance during break |
120K ohms |
Tone Dialing |
DTMF output (into 600 Ohms): |
Tone-frequency error: ±1.5%; Tone level: High group:
-6 ± 2 dBm; Low group: -8 ± 2 dBm; High vs. Low Difference: 2 ± 1 dBm
|
Flash Duration |
600 ± 50 ms |
Pause Duration |
Tone |
3 seconds |
Pulse |
3.4 seconds |
Memory |
Battery backed-up memory stores
eight programmed phone numbers (24 numbers) and associated names (16
characters), plus last-number redial. Battery will typically maintain stored
numbers in an unused test set for over 2 years. |
Return loss |
14 dB at 600 Ohms |
Line Current Range |
15 to 120 mA |
Apparent Line Resistance |
275 Ohms at 20 mA |
MONITOR-mode Impedance |
>230K Ohm |
Measurement |
Voltage |
0 to 128 VDC ± 5% |
Current |
10 to 140 mA ± 5% |
Note: Do not attach test set to
electric-power lines |
User Controls |
One left-side-mounted TALK/BELL/MON
slide switch for operating mode; One right-side-mounted microphone mute push
button (tap to lock or hold down); Six front-mounted push buttons for various
options; One standard front-mounted 12-key phone keypad |
Indicator |
One front-mounted 2-line x
16-character reflective graymode super-twisted liquid crystal display (LCD)
panel |
Connectors |
To telephone network |
RJ-12 (6-wire RJ-11) female |
To headset |
2.5 mm cell-phone headset jack |
Power |
From a 9-VDC alkaline battery, typical: |
BELL mode (timed out): 20 µA; TALK mode: CWCID OFF: 4
mA; CWCID ON: 12 mA; MONITOR mode: 27 mA |
Note: The loudspeaker can draw as
much as 200mA peaks itself, in addition to the currents listed above for TALK
and MONITOR modes. |
Battery Life |
For a typical 9-VDC, 540 mA-hr alkaline
battery: |
Operating: 20 hours min., 112 hours max.; Standby: 2.5
years; Typical: 25 to 40 hours
|
Note: The loudspeaker draws a large
amount of power and can discharge the battery quickly if used at high volume on
a line with a lot of signal. |
Maximum altitude |
10,000 ft. (3048 m)
operating |
Temperature Tolerance |
Operating |
32º to 122ºF (0º to 50ºC)
|
Storage |
–4º to +140ºF (-20º to + 60ºC)
|
Humidity Tolerance |
10% to 90% non-condensing |
Enclosure |
High-strength ABS plastic |
Size |
Excluding lanyard (top hook) |
7.25" H x 2.50" W x 1.68" D (18.5 x 6.4 x 4.3
cm)
|
Weight |
With cable set |
<10 oz. (284 g) |