9
Specifications
System Capacity
3 C.O./PBX Lines (Loop Start)
8 Stations:
- up to eight keysets
- up to six single line telephones
3 Internal Speech Paths
1 Audio Channel for System Tones
1 Audio Channel for Music (Internal Melody or External Source)
1 Door Phone with Lock Release Contact
Automatic Power Failure Transfer Circuits, 2 Telephone Lines
1 External Page
Power Specifications
AC Input:
220 VAC at 50/60 Hz
Voltage Range
180 - 260 VRMS
Power Consumption:
40 Watts maximum
Max Current Draw:
1.0 AMP
Ring Generator:
80 VRMS 20 Hz
Battery Back-up Supply:
24 VDC batteries rating not less than 6 AH but not more
than 40 AH
Environmental Limits
Operating Temperatures:
0
o
- 45
o
C (18
o
- 25
o
C recommended)
Operating Humidity:
10 - 90% (without condensation)
Cable Requirements
Electronic Set:
2 pair twisted, 400m 24AWG maximum
Single Line Telephone:
1 pair twisted, 400m 24AWG maximum
Door Phone:
2 pair twisted, 100m 24AWG maximum
Physical Dimensions & Weights
Key Service Unit:
400 mm H x 300 mm W x 82 mm D, 4.5 kg
Keyset:
230 mm H x 195 mm W x 82 mm D, 1.0 kg
Door Phone:
130 mm H x 98 mm W x 28 mm D, 0.2 kg
External Music Source Input:
Impedance 600 ohms, 350 mV
External Amplifier Output:
Impedance 600 ohms, 1.24 VRMS
Summary of Contents for NX-308
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Page 4: ...2 This page is intentionally blank ...
Page 5: ...Instroduction ...
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Page 7: ...5 GENERAL DESCRIPTION ...
Page 13: ...11 INSTALLATION ...
Page 15: ...13 Figure 1 KSU Layout ...
Page 17: ...15 Figure 2 KSU Dimensions mm ...
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Page 27: ...25 SYSTEM PROGRAMMING Levels of Programming ...
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