N-8031SB
N-8031SB একটি প্রিন্টেড সার্কিট বোর্ড ইউনিট N-8031MS ফ্ল্যাশ মাউন্ট হ্যান্ডস ফ্রী যা মাস্টার স্টেশনের জন্য,মাস্টার স্টেশন N-8031SB ইউনিটের কম্বিনেশন ব্যবহার করে অ্যাপ্লিকেশনের উপযোগী করা যায় অপারেশন প্যানলে আলদাভাবে প্রস্তুত করে রাখা যায়।
- * 0 dB = 1 V
| 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 |
