4 SPECIFICATIONS
4.1. GENERAL DESCRIPTION
Control Bus Original bus (16-bit, 24 MHz)
Switching Space Division CMOS Crosspoint Switch
Power Input 100 V AC to 240 V AC, 0.8A to 0.4A, 50 Hz/60Hz
External Battery +24 V DC (+12 V DC x 2)
Maximum Power Failure Tolerance 300 ms (without using backup batteries)
Memory Backup Duration 7 years
Dialling Outside (CO) Line Pulse (10 pps, 20 pps) or Tone (DTMF)
Extension Pulse (10 pps, 20 pps) or Tone (DTMF)
Intercom Path 3
Mode Conversion Pulse-DTMF
Ring Frequency 20 Hz/25 Hz (selectable)
Operating Environment Temperature 0°Cto40°C
Humidity 10 % to 90 % (non-condensing)
Conference Call Outside (CO) Line 2
Music on Hold (MOH) 1 port
Selectable MOH: Internal/External/Tone
Paging Internal 1
Extension 1 port
Serial Interface Port RS-232C 1
USB 1.1 1
Extension Connection Cable SLT 1 pair wire (T, R)
PT 2-pair wire (T, R, H, L)
DSS Console 1-pair wire (H, L)
Dimension 249 mm (W) x 316 mm (H) x 73 mm (D)
Weight (when fully expanded) Approx. 1.8 kg
4.2. CHARACTERISTICS
Terminal Equipment Loop Limit PT 40 Ω
SLT 600 Ω including set
Doorphone 20 Ω
Minimum Leakage Resistance 15000 Ω minimum
Maximum Number of Extension
Instruments per Line
1 PT or SLT in standard connection
1 PT and 1 SLT in parallel connection
Ring Voltage 65 Vrms at 20 Hz/25 Hz depending on the ringing load
Outside (CO) Line Loop Limit 1600 Ω maximum
Hookswitch Flash/Recall Timing Range 24 ms-2032 ms
Door Opener Current Limit 30 V DC/30 V AC, 3 A maximum
Paging Terminal Impedance 600 Ω
MOH Terminal Impedance 10000 Ω
4.3. SYSTEM CAPACITY
4.3.1. System Capacity
KX-TEA308
Basic System Outside (CO) line 3
Extensions for PT/SLT 8
9
KX-TEA308CE
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