Installation and Operation Manual Chapter 1 Introduction
Vmux-210 Ver. 1.1 Technical Specifications 1-19
Zero
Suppression
B8ZS, AMI
Framing D4, ESF
Receive Signal
Level
0 to -36 dB with CSU
0 to -13 dB without CSU
Transmit Signal
Level
0, -7.5, -15, or -22.5 dB with CSU
±2.7V (±10%) at 0–655 ft without CSU
Jitter
Performance
Per AT&T TR-62411, G.824
Line Impedance 100Ω, balanced
Connector RJ-45
FXS Ports
Number of Ports
12, 15, 24, or 30
Analog
Parameters
ITU-T standards: G.713, 2-wire for voice and signaling
Nominal level: 0 dBm
Nominal impedance: 600Ω
Return loss (300 to 3400 Hz): better than 20 dB
Frequency response (Ref: 1020 Hz):
• 300 to 3000 Hz: ±0.5 dB
• 250 to 3400 Hz: ±1.1 dB
Level Adjustment, soft selectable:
• TX: +5 dBm to -4 dBm
• RX: +5 dBm to -10 dBm
• Steps: 1 dB (±0.1 dB), nominal
Signal to Total Distortion, G.712, G.713 method 2:
• 0 to -30 dBm0: better than 33dB
• +3 to -45 dBm0: better than 22dB
Idle channel noise: better than -70 dBm0 (+20 dBrnc)
Connectors
Telco-50 or Telco-64 connector
Signaling
Signaling type: EIA RS-464 Loop-Start
On-Hook/Off-Hook Threshold:
• 3V to 38V between TIP and RING at off-hook state
• Higher than 40V between TIP and RING at on-hook
state
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