Procom DVS-21 - Operation Mode LB

User Guide
DVS-21
02/2018 • V.1.0 • L. Wolle
61/131
© 2017 ProCom
®
Professional Communication & Service GmbH • Technical changes reserved.
Operation mode LB
LB = Local Battery, operation by means of a local battery without central supply (crank and field phones)
USE2 Firmware
2104e
DVS Firmware
>= 7.62
Activation, connection and tunneling of LB party lines via two modules USE2.
 LB Ringing tone recognition
 LB Ringing tone recognition, Regeneration
 Voice connection
 LB Repeater mode
Recommended programs:
LB connection
LB forwarder
LB splitter (Repeater mode)
Info
0 (without function)
Byte 1 (Hybrid)
Byte 1 is calculated by the addition of the following values: (see also Hybrid balance)
Hybrid amplification
0 - 31
Filter active/bypass
32
negative overlap
128
positive overlap
128 + 64
Call level
Value range 60 - 95 (1,9 - 4,6W at 1 kOhm) (Default 80 (3,2W at 1 kOhm)
Timer count
switch-off time after voice detection
Value 255 prevents a switch-off (Dedicated line)
Range (AF)
Response threshold of voice detection
AF frequency
0 (without function)
Hybrid balance (starting from the right in the circuit diagram)
The hybrid is used to separate the transmission and reception signal in 2-wire connections.
Bi-Quad Filter
Phase correction of lower to mid frequencies
P/Z Filter
Phase correction of mid to high frequencies (1 = default)
Hybrid amplification
Level of the hybrid circuit
Polarization
Positive or negative overlap
Level incoming
AF input amplification (from external device to module)
Level outgoing
AF output attenuation (from module to external device)
Auto Online Level
In the case of the option being active, a change in the filter always triggers the
transmission as Online level automatically! This is merely an aid to filter adjustment.
It is of no relevance in terms of the function!