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SP - 1
SPECIFICATIONS OF HSD MODEM UNIT
IB-681
1. GENERAL
(1)
Tx Frequency
179.8 MHz
(2)
Rx Frequency
90.0 MHz
(3)
Channel Frequency Spacing 100 kHz
(4)
Receive Level
-60 dBm to -90 dBm
(5)
Transmit Level
-12.5 dBm
(6)
Channel Rate
132 Kbps
(7)
Modulation
O-QPSK, 50% filtered
(8)
Data Speed
56/64 Kbps, synchronous
(9)
Interface
RS-232C (Dsub25p), RS-449 (Dsub37p)
2. POWER SOURCE
(1) Rated Power
100/220 VAC (
±
10%): 0.3/0.2 A, 1 Phase, 50/60 Hz
3. ENVIRONMENTAL CONDITION
(1)
Temperature
-15 °C to +55 °C
(2)
Relative Humidity
93% at +40 °C
(3)
Water Resistance
IPX2
4. COATING COLOR
(1)
Cover
2.5GY5/1.5 Newtone No.5
(2)
Panel
N3.0