Chapter 1 Product Description IP6704A TDMoEthernet
Loop Telecommunication International, Inc.
1
Voice Card (QEMA)
Connector
One 44-pin connector, adaptor cable included for 4 RJ45
connectors.
Alarm Conditioning
CGA busy after 2.5 seconds of LOS, LOF
Encoding
A-law or
-law, user selectable as a group
Impedance
Gain Adjustment
(Per-port setting)
Gain Variation
Frequency Response
I/O Power Range
Balanced 600 or 900ohms
-10 to +7 dB / 0.1dB step for transmit (D/A) gain
±
0.5 dB at 0 dBm0 input
±
0.5 dB from 300 to 3400 Hz, coincide with ITU-T G.712
A/D Analog input level: -66 dBm (0.00039 Vrms) ~ + 3 dBm (1.09
Vrms)
D/A Analog output level: -66 dBm (0.00039 Vrms) ~ + 4 dBm
(1.22 Vrms)
Longitudinal Balance
Longitudinal
Conversion Loss
Total Distortion
Idle Channel Noise
Wire Mode
Signaling
M Lead Output
Current
E Lead Sensor
Current
EM Type Setting
Relative Humidity
Carrier Connection
> 63dB
＞
46dB
＞
35 dB at 0 dBm0 input
＜
-65 dBm0p
2 wire and 4 wire
Type I, Type II, Type III, Type IV, Type V, and TO (Transmission
Only)
18 mA (maximum)
0.3 mA (minimum)
Jump Selectable
0% to 95%
Side A and side B setup by Jump
All in-band signaling tones are carried transparently by the digitizing process.
Customer is responsible for in-band signaling compatibility between a telephone and a
switch, or between a PBX and a switch.
Voice Card (QFXO)
Quad FXO voice card (4 FXO per plug-in)
Connector
1, 2, 3, or 4 FXO per RJ11 connector
Alarm
Conditioning
CGA busy after 2.5 seconds of LOS, LOF
Encoding
A-law or
-law, user selectable together for all
AC impedance
Balanced 600 or 900 ohms (selectable together for all)
Longitudinal
Rejection
55 dB
Loss Adjustment 0, 3, 6, or 9 dB transmit & receive
Signal/
Distortion
> 46dB with 1004 Hz, 0dBm input
Frequency
Response
±
0.5 dB from 300 to 3400 Hz, coincide with ITU-T G.712
FXS Loop Feed -48Vdc with 25mA current limit per port
Jumper Selectable: 25mA, 30mA, 35mA
FXO
Ringing REN
0.5B (AC)
Detectable Ringing 25 Vrms