Vigilant QE20 - Electrical Inputs; Outputs; Links

Document: LT0732 QE20 Fibre Networking User Manual
Issue 1.0 24 May 2023 Page 4-3
Current 0.16A quiescent / 0.33A in-use* (@24V) when
one 5V output is used to power one ATA.
0.29A quiescent / 0.60A in-use* (@24V) when
both 5V outputs are used to power two ATA.
0.03A + 0.01A per operated relay when the 5V
power outputs are not used.
* in-use means each line has a call in progress.
Electrical Inputs / Outputs
24V Power (J12) In Screw Terminals (2)
5V Power (J13) Out 2-pin header
5V Power (J14) Out 2-pin header
PA Line 1 (J1) In / Out RJ11 to ATA
WIP Line 1 (J4) In / Out RJ11 to ATA
PA Line 2 (J2) In / Out RJ11 to ATA
WIP Line 2 (J5) In / Out RJ11 to ATA
QE20 Comms Bus In / Out Screw Terminals (4)
RS232 (J8) In / Out DB9 Socket, DCE pinout. Used for Flash
programming and diagnostics.
QE20 PA In / Out Screw Terminals (2) to RS485 Network or audio
QE20 WIP In / Out Screw Terminals (2) to RS485 Network or audio
Call Server In Screw Terminals (2), currently not used.
Links
LK1 Enable Flash
Program
Insert when updating the firmware from a
PC/laptop. Otherwise, this link must be removed,
or parked on one pin only.
LK2 Flash Program /
Call Server
Place in the Flash Program position when updating
the VIF’s firmware. Otherwise, the position doesn’t
matter (currently).