Build-Your-Own Intercom Master Station PCB

The N-8031SB is a PCB kit version of the N-8031MS for custom installations where a custom interface is desired. It connects to an N-8000EX or N-8010EX exchange by a single twisted pair cable.

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The N-8031SB is a PCB kit version of the N-8031MS for custom installations where a custom interface is desired. It connects to an N-8000EX or N-8010EX exchange by a single twisted pair cable. Connecting a foot switch or other external switch to the external dial input terminal permits one-touch dialing when activated. This equipment is compatible with the RS-191 handset for private conversation.

Power Source	48 V DC (supplied from the IP intercom exchange (option))
Power Consumption	1.8 W (at rated), 2.4 W (max.)
Wiring Method	Non-polar one pair stranded wire system
Transmission System	2 wire 160 kbps echo canceller transmission system
Signal Level	Under 0 dB*
Speech Method	Hands-free conversation (Handset conversation can be established in conjunction with the RS-191 (option)).
Audio Frequency Range	300 - 7,000 Hz
Transmission Range	Max. 1500 m (φ0.65 mm, Loop resistance 170 Ω)
Hands-free	Speaker (accessory): 5.7 cm cone-type, 0.6 W, 8 Ω Microphone (accessory): Omni-directional electret condenser microphone
Line Connection Terminal	Pin header (2 pins)
Status Indicator LED Connecting Terminal	Solderless connector (2 pins, male), voltage: 5 V, maximum load current: 5 mA
Dial Input	Solderless connector (10 pins, male), open voltage: 3.3 V DC, short-circuit current: 1 mA
External Dial Input	No-voltage make contact input, open voltage: 5 V DC, short-circuit current: 1 mA, screwless connector (5 pins)
Operation Temperature	0℃ to 40℃
Operation Humidity	Under 90% RH (no condensation)
Dimensions	70 (W) × 185 (H) × 20.6 (D) mm
Weight	205 g (including accessories)
Accessory	Removable terminal plug (2 pins, preinstalled on the unit) …1, Handset jumper (8 pins, preinstalled on the unit) …1, Ferrite clamp …1, Hands-free speaker (with connection cord) …1, Hands-free microphone (with connection cord) …1
Option	Option handset: RS-191

Model: N-8031SB
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