0180036-J0 Rev E Page 9
4 External Peripherals
4.1 L-ADIO
The L-ADIO is the standard analog and digital I/O peripheral for low voltage (<60Vdc) systems. The
L-ADIO communicates on CAN bus to the controller and provides user access to I/O management via
the CXC HP controller.
Figure 8: L-ADIO I/O Peripheral
4.1.1 Analog Inputs
Four voltage inputs, V1 – V4, are provided on the L-ADIO for a variety of voltage monitoring require-
ments. The input channels can measure a signal between -60Vdc and +60Vdc.
Four current input channels, I1 – I4, provide monitoring of current; e.g., discharge (load) and charge
(battery). The CXC HP is capable of monitoring standard shunts of 25, 50 and 100mV as well as appli-
cations specifications of up to 200mV. The shunt current rating can be configured in the controller user
interface and is set by default to 800A 25mV. The maximum input range for this signal is -200mV to
+200mV.
Four temperature input channels, T1 – T4, provide monitoring of temperature probes (thermistors).
These are typically used for either ambient temperature, or for battery post monitoring to enable battery
temperature compensation. The temperature sensor is provided by Alpha in various lengths. The input
range for this signal is 0V to 5V and is powered internally from the L-ADIO.
4.1.2 Digital Inputs
The L-ADIO can accommodate up to eight digital input channels, D1 – D8. Each channel responds to
a zero or system voltage potential at the input to activate or deactivate the appropriate condition. These
channels can monitor digital alarm/control signals from rectifiers, converters and many other types of
equipment.
An additional digital input, “EXT” is reserved for monitoring an external LVD override
4.1.3 Alarm and Control Output Relays
Each L-ADIO contains twelve Form C alarm output relays to extend alarms and control external appa-
ratus. Each internally generated alarm or control signal may be mapped to any one of the 12 relays, or,
several signals may be mapped to just one relay or none at all
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