Black Box COMPACT T1 MT850A - Manual (Page 398)

8-4 Compact T1 - Release 6.1
FXS Voice Card
Technical Specifications
Technical Specifications
Controller Software Required
T1 Controller
l Release 1.50 or higher is required for the FXS 5G card
FXS Transmission Performance
l Return Loss: ERL > 28 dB, SRL > 20 dB with respect to 900
Ω + 2.16µ
F
l Transhybrid Loss: ERL > 28 dB, SRL > 20 dB with respect to 900
Ω + 2.16µ
F
l Idle Noise: A/D < 15 dBrnC0, D/A, < 10 dBrnC0
l Crosstalk Coupling: < 80 dBm0 at 0 dBrnC0
l Signal/Distortion: > 45 dB with 1004 Hz, 0 dBm0 input
l Terminating Impedance: 900
Ω
+
2.16µ
F
l Transhybrid Impedance: automatic
l Transmit Gain/Loss: +6 to -12 in .25 increments, switch selectable per card or
management selectable per channel
l Receive Gain/Loss: +6 to -12 in .25 increments, switch selectable per card or
management selectable per channel
l Overload: +3.0 dBm/90
l Frequency Response: +0 dB -1.0 dB from 300 to 3400 Hz
l
Longitudinal Balance: >63 dB per IEEE 455 and FCC Part 68
l Modem Support: Full compatibility with V.90 modems