RTCM-231 POWERBOX, PROTECTION AND CONTROL UNIT- DIGITAL OPTION

Name: RTCM-231 POWERBOX, PROTECTION AND CONTROL UNIT- DIGITAL OPTION
Brand: XAP TECHNOLOGY
SKU: PF0570

Technical sheet

RTCM — configurable power distribution and circuit diagnostics

The XAP Technology RTCM is an electronic power distribution module for motorsport electrical systems and demanding vehicle electronics projects. It replaces conventional relays and fuses with protected, configurable outputs, helping to simplify the wiring harness, reduce weight and improve diagnostics. The supplied RTCM conf software lets users tailor current thresholds and output behaviour to the requirements of each vehicle.

The RTCM protects each connected device individually through configurable current thresholds. XAP can therefore tailor the power distribution logic to the pumps, fans, lights, ECUs and other loads installed in the vehicle, without the fixed operating constraints of a conventional relay-and-fuse wiring harness.

RTCM conf PC software provides control over parameters including overcurrent blanking time, maximum current, continuous or flashing operation, latched or timed commands, and the automatic reset strategy following an overcurrent event. Output status feedback and current-consumption monitoring make circuit supervision and fault-finding easier.

CAN communication allows the RTCM to interface with vehicle equipment and supports networks of multiple modules operating in master/slave or independent mode. XAP can assist with configuration, connectors and wiring-harness design to adapt the product to the project architecture.

Key features

Electronic replacement for fuses and relays, with individual output protection.
Configurable thresholds and output behaviour using the supplied RTCM conf software.
12 HP outputs rated up to 50 A and 22 MP outputs rated up to 25 A.
Output-status and current-consumption diagnostics.
CAN communication and networking of multiple RTCM modules.
IP65 aluminium enclosure designed for vibration-prone environments.

Technical specifications and integration

The RTCM uses three military-grade Amphenol connectors. Wiring must follow the physical pin assignments below, the harness current ratings and the installation’s main protection requirements. XAP can supply the connectors, tailor the wiring harness and assist with CAN network and output-strategy configuration.

Integration

Connector C1 carries the battery supply, power grounds and external relay control. Connectors C2 and C3 carry the HP and MP outputs, ten digital inputs, the CAN bus, main-relay commands and the analogue input. The RTCM also manages the main battery relay.

Before power-up, XAP recommends checking conductor sizing, upstream protection, CAN termination, the pinout of connected equipment and the RTCM conf setup. This description does not replace the installation manual or final wiring-harness validation.

Technical specifications
Specification	Value
HP outputs	12 outputs; 15 to 50 A peak; 8 thresholds
MP outputs	22 outputs; 7.5 to 25 A peak; 8 thresholds
Programmable delay monitoring	Programmable from 0.15 to 155 ms; 4 thresholds for each MP and HP output
Communication	1 CAN bus
Digital inputs	10 digital inputs with 5 V pull-up
Analogue input	1 input, 0–5 V
Main relay management	Yes; main battery relay up to 300 A and master cut-off control
Ingress protection	IP65
Operating temperature	−10 °C to 100 °C
Enclosure	Solid aluminium
Configuration software	RTCM conf supplied

Wiring harness connectors
Connector	Amphenol reference	Number of pins
C1	451 06RT 14-19 S50	19
C2	451 06RT 18-32 P50	32
C3	451 06RT 18-32 PW50	32

C1 pinout — 451 06RT 14-19 S50
Pin	Signal	Function
A	12V IN	12 V battery power input
B	12V IN	12 V battery power input
C	12V IN	12 V battery power input
D	12V IN	12 V battery power input
E	12V IN	12 V battery power input
F	RELAY EXT	External relay activation to GND
G	12V IN	12 V battery power input
H	12V IN	12 V battery power input
J	12V IN	12 V battery power input
K	12V IN	12 V battery power input
L	12V IN	12 V battery power input
M	12V IN	12 V battery power input
N	12V IN	12 V battery power input
P	12V IN	12 V battery power input
R	12V IN	12 V battery power input
S	12V IN	12 V battery power input
T	12V IN	12 V battery power input
U	GND	Ground
V	GND	Ground

C2 pinout — 451 06RT 18-32 P50
Pin	Signal	Function
A	MP11	MP11 output
B	MP10	MP10 output
C	MP09	MP09 output
D	MP08	MP08 output
E	MP07	MP07 output
F	MP06	MP06 output
G	MP05	MP05 output
H	MP04	MP04 output
J	MP03	MP03 output
K	MP02	MP02 output
L	MP14	MP14 output
M	MP13	MP13 output
N	MP12	MP12 output
P	HP03	HP03 output
R	HP03	HP03 output
S	CMD IN 4	Digital input 4, 5 V pull-up
T	MP01	MP01 output
U	CMD IN 7	Digital input 7, 5 V pull-up
V	HP02	HP02 output
W	HP02	HP02 output
X	CMD IN 3	Digital input 3, 5 V pull-up
Y	CMD IN 5	Digital input 5, 5 V pull-up
Z	CMD IN 1	Digital input 1, 5 V pull-up
a	MASTER OFF	Momentary switch-to-ground command: OFF
b	CAN 1 LOW	CAN 1 Low
c	CAN 1 HIGH	CAN 1 High
d	MASTER ON	Momentary switch-to-ground command: ON
e	CMD IN 2	Digital input 2, 5 V pull-up
f	MP15	MP15 output
g	HP01	HP01 output
h	HP01	HP01 output
j	CMD IN 6	Digital input 6, 5 V pull-up

C3 pinout — 451 06RT 18-32 PW50
Pin	Signal	Function
A	AGND	Analogue ground
B	MP16	MP16 output
C	HP11	HP11 output
D	HP11	HP11 output
E	HP10	HP10 output
F	HP10	HP10 output
G	HP09	HP09 output
H	HP09	HP09 output
J	HP05	HP05 output
K	HP05	HP05 output
L	HP06	HP06 output
M	HP06	HP06 output
N	HP07	HP07 output
P	HP07	HP07 output
R	HP08	HP08 output
S	HP08	HP08 output
T	MP17	MP17 output
U	CMD IN 8	Digital input 8, 5 V pull-up
V	CMD IN 10	Digital input 10, 5 V pull-up
W	ANA	Analogue input, 0–5 V
X	MP22	MP22 output
Y	MP21	MP21 output
Z	HP04	HP04 output
a	HP04	HP04 output
b	CMD IN 9	Digital input 9, 5 V pull-up
c	MP20	MP20 output
d	MP19	MP19 output
e	MP18	MP18 output
f	HP12	HP12 output
g	HP12	HP12 output
h	HP12	HP12 output
j	HP12	HP12 output

XAP references
Reference	Description
PF0570-A	RTCM-231 — Full Digital version
PF0316-B	RTCM-230 — 2 CAN version

Documentation

Download the XAP RTCM platform datasheet. For final configuration and wiring-harness validation, contact XAP Technology with reference PF0570-A and the product hardware version.