Tyco Safety Products/Sensormatic DMS915 Manuel D’Utilisation
8
SETUP AND SERVICE GUIDE
DIGITAL MICROWAVE SYSTEM 915
8000-0395-02, REV. B
Specifications
Electrical
AC Step-down Transformer
Primary Input:.....................100, 120, or 230Vac,
50/60Hz
Fused Secondary Output: ..24Vac, 50VA, 2.08A
Fuse: ..................................2.5A LKB STD fast-
blow
DC Power Supply
Resettable Polyswitch: .......3.0A at 20
°
C (derates
to 2.1A at 50
°
C)
Positive Regular Outputs: ..+15.8, +12, +8, +5Vdc
Negative Regular Outputs:.-16, -12Vdc
Rated Current (w/o alarm) .<1.5A at 20
°
C with RF
frequency at 915MHz;
E-field at 500Vp-p,
111.5kHz, 11,000pF
load
E-field at 500Vp-p,
111.5kHz, 11,000pF
load
Rated Current (with alarm).<2.0A at 20
°
C with RF
frequency at 915MHz;
RF power at level 10,
E-field at 500Vp-p,
111.5kHz, 11,000pF
load; alarm volume at
maximum
RF power at level 10,
E-field at 500Vp-p,
111.5kHz, 11,000pF
load; alarm volume at
maximum
RF Antenna
Dual Helix, Dual patch, Micro II dish
RF Cable
RG142, RG142 B/U 50 ohm
E-Field Generator
Modulated Input Frequency:
442 – 450kHz in
2kHz increments
Modulated Output Frequency:
111.5 – 112.5kHz
in 500Hz increments
Modulation:.........................FSK, 650 – 950Hz
Output Voltage: ..................1000Vp-p maximum at
minimum capacitance;
500V maximum at
maximum capacitance
500V maximum at
maximum capacitance
Resonance Range: ............Continuous
capacitance, 50pF –
11,000pF
11,000pF
IF FM Detector
Center Frequency:............. 111.5kHz
IF Bandwidth (module): .....
±
4.38kHz maximum
Modulation Frequency Generator:
650 –
950Hz
Transmitter
RF Synthesizer Frequency Range:
900 –
920.1MHz (U.S. range:
902 – 928MHz)
902 – 928MHz)
RF Stability (RFS): ............ RFS <
±
25ppm
F(TX) = 900MHz,
±
22.500kHz
F(TX) = 905MHz,
±
22.625kHz
F(TX) = 920.1MHz,
±
23.003kHz
RF Bandpass Filter 3dB Bandwidth:
890 –
915MHz
US RF Frequency:............. Voluntary restricted to
902.7 – 904.9MHz
RF Output Power Maximum:
+21dBm/port
Power Difference:.............. 0.5dB maximum
between 902.7MHz –
904.9MHz
904.9MHz
Frequency Hopping Mode: (Complies with FCC
Part 15.247)
Selectable RF Banks:2
Selectable RF Banks:2
Frequency Modulation:...... Mod. Freq. = 1.2kHz
Adjacent RF Channel Spacing: 30kHz
RF Channels per RF Bank: >50
RF Hopping Channel:........ 30kHz minimum
RF Channel Selection: ...... Determines by
pseudorandom code
sequence
sequence
Output Filter 3dB DW: ....... 888 – 915MHz
RF Receiver
RF Bandpass Filter 3dB Bandwidth:
890 – 915
MHz
IF Bandwidth: .................... BW < or =
±
3.5kHz
Input Filter 3dB BW: .......... 888 - 915MHz
Sensitivity: ......................... = .1257microVrms
Environmental
Operating Temperature: .... -10 to 50°C (14°–
122°F)