User Guide

EVAL-LTC9101-2

QUICK START PROCEDURE

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Rev. 0 | 4 of 10

Follow the procedure below and see Figure 2

through Figure 4, and Table 2 through Table 4 for

proper equipment setup and default configuration.

NOTE: Step 1 only applies to the EVAL-LTC9101-2.

1. For autonomous operation with the EVAL-LTC9101-2, set the

jumper PWRMD-1 (JP1) on the DC3017A-B motherboard to

PM3 through PM7. See Table 2 for all PWRMD-1 options and

the PWRMD Settings section for more information.

2. On the DC3017A-B motherboard, set the address switches AD2

and AD3 (SW5) to LO and JP22 (AD1) to LO for the default

0x20 base I2C address.

3. On the DC3017A-B motherboard, set the CFG1 (JP20) and

CFG1 (JP21) jumpers to HI to set CFG[1:0] logically to 11b to

enable all ports. See Table 3 for more configuration options.

4. Align pin 1 of the 16-pin male connector P1 on the DC3159A

daughter card with pin 1 of the 16-pin female connector J11

on the DC3017A-B motherboard as shown in Figure 3. The six

male connectors and six female sockets should match. Keyed

pins in J16 and J12 assist with the alignment shown in Figure

4. Carefully push the daughter card straight down until the male

and female connectors are flush with each other.

5. Connect a supply to the DC3017A-B motherboard with the posi-

tive rail to POS INPUT (+) and negative rail to NEG INPUT (-)

as shown in Figure 4. Use a power supply capable of sourcing

the maximum power for all ports to be tested. Ramp the supply

up to within the recommended voltage range specified in Table

4.

NOTE: Banana jacks J8 and J10 should only be used for up to

15 A of supply current. Use the lug nut terminals J7 and J9 for

supply currents of up to 50 A; enough for 24 ports at maximum

IEEE 802.3bt power.

6. Connect the DC590B or other I2C host controller at 14-pin

connector (J1) as shown in Figure 4. Host control is required for

EVAL-LTC9101-2A.

7. Connect IEEE 802.3af, 802.3at, or 802.3bt PDs to the mother-

board’s RJ45 connectors J3 and J4, as shown in Figure 4.

Table 2. EVAL-LTC9101-2 PWRMD-1 (JP1) Jumper Settings

PWRMD-1

Jumper Setting

RPWRMD

Resistor

Mode

PM0

OPEN

DISABLED

PM1

24.3k

RESERVED

PM2

18.7k

RESERVED

PM3

14.3k

Class 4: 25.5W

PM4

11.0k

Class 5: 40W

PM5

8.45k

Class 6: 51W

PM6

6.49k

Class 7: 62W

PM7

1.00k

Class 8: 71.3W

Table 3. EVAL-LTC9101-2-KIT CFG1 and CFG0 Jumper Settings

Jumper

# of Analog

Controllers

Number of Channels

CFG1 (JP21) CFG0 (JP20)

LO

LO

1

12

LO

HI

2

24

HI

LO

3

36

HI

HI

4

48

Table 4. EVAL-LTC9101-2-KIT Power Supply Voltage per PSE Type

IEEE 802.3 Type,

Max Class

Supply Voltage Range

Type 2, up to Class 4

Type 3, up to Class 6

51 V to 57 V

Type 4, up to Class 8

53 V to 57 V