Pub. 42004-783L2C
SP2 Remote Subset/Speaker Amplifier Station
Page 19 of 20
P:\Standard IOMs - Current Release\42004 Instr. Manuals\42004-783L2C.docx
04/18
RTU
Output Control
Maximum load current ....................................................................................... 8 A OUTPUT 1A (unfused)
1.6 A OUTPUT 1B (fused)
Maximum in-rush current ....................................................................................................................... 15 A
Maximum voltage ............................................................................................................................. 250 V ac
Input Control
Switch type ................................................................................................................ NO or NC dry contacts
End-of-line termination .......................................................................................... 20 kΩ, or 15 kΩ + 5.1 kΩ
Cable resistance .......................................................................................... 100 Ω maximum loop resistance
Contact closure resistance ...................................................................................................... 1 kΩ maximum
Open fault detection ............................................................................................................................ >65 kΩ
Short fault detection ............................................................................................................................ <200 Ω
Audio
Handset Amplifier
Frequency response ............................................................................ 250–3,000 Hz, +0/–3 dB ref. to 1 kHz
Distortion ..................................................................................................................... <1.5% THD @ 1 kHz
Receiver level............................................................................... 200 mV nominal, adjustable 100–350 mV
Speaker Amplifier
Maximum output:
8-ohm speaker* ....................................................................... 30 W into 8-Ω load with −6 dBFs data signal
.........................................................................................................adjustable to 30 W; default: 4 W @ 8 Ω
16-ohm speaker ..................................................................... 15 W into 16-Ω load with −6 dBFs data signal
....................................................................................................... adjustable to 15 W; default: 2 W @ 16 Ω
Frequency response ............................................................................ 250–3,000 Hz, +0/−3 dB ref. to 1 kHz
Distortion ........................................................................................................... <1% THD @1 kHz to 24 W
<3% THD @ 1 kHz to 30 W
70V/100V Speaker Output
Maximum output .................................................................................................................................... 24 W
Nominal output voltage ......................................................................................................... 70.7 V or 100 V
600-ohm Audio Input
Audio Level ...................................................................................................................... 1 V
(
RMS
)
maximum
Control type ............................................................................................................................ NO dry contact
Control cable resistance ................................................................................ 1 kΩ maximum loop resistance
600-ohm Audio Output
Frequency response ................................................................... 250–3,000 Hz, +0/−3 dB reference to 1 kHz
Distortion .................................................................................... <1% THD @ 1 kHz to 1 V
(
RMS
)
into 600 Ω
Audio level .............................................................................. adjustable 100 mV
(
RMS
)
to1 V
(
RMS
)
into 600 Ω
Control type .................................................................. NO solid state relay, maximum on resistance; 35 Ω
Control maximum load current .......................................................................................................... 100 mA
Control maximum load voltage...................................................................................................... 24 V ac/dc