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4 SPECIFICATIONS
4.1.
GENERAL DESCRIPTION
Control Bus
Switching
Power Input
External Battery
Maximum Power Failure Tolerance
Memory Backup Duration
Dialling
Intercom Path
Mode Conversion
Ring Frequency
Operating Environment
Conference Call Outside (CO) Line
Music on Hold (MOH)
Paging
Serial Interface Port
Extension Connection Cable
Dimension
Weight (when fully expanded)
4.2.
CHARACTERISTICS
Terminal Equipment Loop Limit
Minimum Leakage Resistance
Maximum Number of Extension
Instruments per Line
Ring Voltage
Outside (CO) Line Loop Limit
Hookswitch Flash/Recall Timing Range
Door Opener Current Limit
Paging Terminal Impedance
MOH Terminal Impedance
4.3.
SYSTEM CAPACITY
4.3.1.
System Capacity
Outside (CO) Line
Extension
Temperature
Humidity
Internal
Extension
RS-232C
USB 1.1
SLT
PT
DSS Console
PT
SLT
Doorphone
15000 Ω minimum
1 PT or SLT in standard connection
1 PT and 1 SLT in parallel connection
65 Vrms at 20 Hz/25 Hz depending on the ringing load
1600 Ω maximum
24 ms-2032 ms
30 V DC/30 V AC, 3 A maximum
600 Ω
10000 Ω
Basic System
Original bus (16-bit, 24 MHz)
Space Division CMOS Crosspoint Switch
100 V AC to 240 V AC, 0.8A to 0.4A, 50 Hz/60Hz
+24 V DC (+12 V DC x 2)
300 ms (without using backup batteries)
7 years
Pulse (10 pps, 20 pps) or Tone (DTMF)
Pulse (10 pps, 20 pps) or Tone (DTMF)
3
Pulse-DTMF
20 Hz/25 Hz (selectable)
0 °C to 40 °C
10 % to 90 % (non-condensing)
2
1 port
Selectable MOH: Internal/External/Tone
1
1 port
1
1
1 pair wire (T, R)
2-pair wire (T, R, H, L)
1-pair wire (H, L)
249 mm (W) x 316 mm (H) x 73 mm (D)
Approx. 1.8 kg
40 Ω
600 Ω including set
20 Ω
Outside (CO) line
Extensions for PT/SLT
9
KX-TEA308
3
8
KX-TEA308NE
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