UMAX141520 Version 1B
14-19
4. TECHNICAL SPECIFICATIONS
4.1 Power Supply Input
Table 2 Power Supply Input
Power Supply Input - Nominal
12V, 24Vdc nominal (9…36VDC power supply range)
Protections
Surge protection is provided.
Reverse polarity protection up to -50V is provided.
Input overvoltage (45V) and input undervoltage (6V) protection are
provided.
The unit is designed for 12Vdc based load dump.
Power Consumption
135 mA @ 12V; 70 mA@ 24V typical
Power LED
GREEN = Power ON
4.2 Automotive Ethernet
Table 3 Automotive Ethernet Parameters
Port Type
1 port
100BASE-T1//1000BASE-T1 (IEEE 802.3 bw/bp compliant
Automatic Polarity Correction
Default configuration: Slave (Master mode is configurable via serial
interface)
PHY
Marvell 88Q2112 (100BASE-T1//1000BASE-T1)
LED’s
2 GREEN LEDs for Automotive Ethernet
Automotive Ethernet LEDs:
ON
BLINK
OFF
LED [0]: Link
Link
No Link
LED [1]: Activity
Activity
No Activity
Activity:
Receive/Transmit
Protection
ESD protection for signal lines
Protocol
Automotive Ethernet
Ethernet IEEE 802.3bw for 100BASE-T1
Ethernet IEEE 802.3bp for 1000BASE-T1
4.3 Ethernet
Table 4 Ethernet Parameters
Port Type
1 port
100BASE-TX/1000BASE-T (IEEE 802.3 compliant)
Auto-Negotiation
Automatic Polarity Correction
MDIX
Auto-MDI/MDIX (crossover)
PHY
Marvell 88EA1512 (100BASE-TX/1000BASE-T)
