M452 · RTO-144 Connections

M452 Oscillator Module · out 600 Ω

Placeholder data: this row of the jumper calculator holds only the 44-contact P2 power and jumper template, with no audio connections. Not checked against a drawing; do not wire from it.

Rear connector

P2 — REAR VIEW · CARD EDGE · 44 CONTACTS123456789101112131415161718VCC-LOGIC GND19VEE-AUDIO -25V20GND21VCC-AUDIO +25V22JMP.22.21ABCDEFHJKLMNPRSTUVWJMP.Z.WXJMP.X.18YVCC-LOGIC +24VZJMP.Z.WTOP ROW 1-22: COMPONENT SIDE · BOTTOM ROW A-Z: SOLDER SIDEPowerGround / chassisJumper

Inputs and outputs

M452M452 Oscillator ModuleINPUTSOUTPUTSVEE-AUDIO-25 V P2-19 / GND P2-20VCC-AUDIO25 V P2-21 / GND P2-20VCC-LOGIC24 V P2-Y / GND P2-18⌒ JMP.Z.W P2-Z↔P2-W⌒ JMP.X.18 P2-X↔P2-18⌒ JMP.Y.21 P2-Y↔P2-21⌒ JMP.3 P2-20↔P2-18⌒ JMP.22.21 P2-22↔P2-21⌒ JMP.Z.Y P2-Z↔P2-Y⌒ JMP.20.19 P2-20↔P2-19⌒ JMP.X.W P2-X↔P2-W

Power · bench PSU

RailStyleVoltsMax ASupplyGroundLink
VEE-AUDIONEW-250.1P2-19P2-202
VCC-AUDIONEW250.2P2-21P2-201
VCC-LOGICNEW240.1P2-YP2-18—

Jumpers

FunctionDesignationFromTo
CH ON LAMPJMP.Z.WP2-ZP2-W
CH ON GND JMP.X.18P2-XP2-18
24V JumperJMP.Y.21P2-YP2-21
CH ON GND JMP.3P2-20P2-18
Insert +JMP.22.21P2-22P2-21
Insert -JMP.Z.YP2-ZP2-Y
Fader +JMP.20.19P2-20P2-19
Fader - JMP.X.WP2-XP2-W

Source: Ward-Beck Systems - Module RTO-144 Jumper calculator.xlsx (Database tab). Pin direction is inferred from the signal name. Verify against the module schematic before wiring.

WBS Ward-Beck Systems Ltd.
Title
M452 RTO-144 connections
Drn.
make_rto144.py
Date
Oct 22 2026