Specifications

Page 13–2
FOCUS System Manual
Interface Two 4-wire voice channels
Signaling E&M each channel, types I, IV, V (IV, & V with MVI only)
Frequency Response 300Hz to 3.6 kHz ±2dB (reference 1 kHz)
Input Impedance 600Ω ±10%
Input Base Level 0dBm or -16dB
Output Base Level 0dBm or 7dBm
Output Offset 0dB to -7dB in 1dB steps
Input Offset 0dB to 7dB in 1dB steps
Indicators E&M signal per channel
Status LED
Max. Input Level 0dBm
Max. Output Level +7dBm
Terminations Compression type terminal block 20–14 AWG
(or optional MVI)
Table 13–1. Four-Wire Voice Module (V4W) Specifications
Multiple Voice Interface Circuit Assignment
Circuit Chassis Slot Channel
01 1 of 3 A
02 1 of 3 B
03 2 of 3 A
04 2 of 3 B
05 3 of 3 A
06 3 of 3 B
Table 13–2. MVI Circuit Assignment