AudioCodes Media Pack MP-11x, User Manual

Page: 649 / 650

Version 6.6 649 MP-11x & MP-124
User's Manual 46. Selected Technical Specifications
Function Specification
Ring Frequency 25-100Hz
Maximum Ringer Load Ringer Equivalency Number (REN) 3
Loop Impedance (including
phone impedance) Up to 1500 ohm for the MP-11x, Up to 1600 ohm for the MP-124
Off-hook Current

MP-11x: 20/25/32 mA (Note: For MP-118, 25/32 mA is supported
only on the first 4 ports)

MP-124: 20 mA (minimum), 20/25/32 mA on first 4 ports
Lifeline Supported in all ports of Mixed FXS/FXO and in first port of MP-
114/FXS and MP-118/FXS using special Lifeline cable
Caller ID
Bellcore GR-30-CORE Type 1 using Bell 202 FSK modulation, ETSI
Type 1, NTT, Denmark, India, Brazil, British and DTMF ETSI CID
(ETS 300-659-1)
Polarity Reversal / Wink Immediate or smooth to prevent erroneous ringing
Metering Tones 12/16 KHz sinusoidal bursts, Generation on FXS
Distinctive Ringing By frequency (15-100 Hz) and cadence patterns
Message Waiting Indication DC voltage generation (TIA/EIA-464-B), V23 FSK data, Stutter dial
tone
Over-voltage protection and
surge immunity Routing of FXS telephony cables outdoors can be done only in
conjunction with AudioCodes’ approved primary surge protector and
proper installation and grounding. When done correctly, the
installation will meet ITU-T K.21 (basic) standards.