Quick Start Procedure - Analog Devices EVAL-LTC9101-3 User Manual

User Guide

QUICK START PROCEDURE

EVAL-LTC9101-3 Operation
The EVAL-LTC9101-3 includes the EVAL-LTC9101-3-AZ daughter
card and EVAL-LTC9101-3-MB-AZ motherboard. This kit allows for
evaluating the LTC9101-3/LTC9103
8-port or 16-port, 802.3at PSE endpoint.
Follow the procedure below and refer to
and Table 1 for proper equipment setup and default configuration.
This default setup automatically powers all valid PDs.
1. On the EVAL-LTC9101-3-MB-AZ motherboard, set LEGACY
jumper JP14 to HI to only power IEEE 802.3 compliant PDs that
present a valid detection signature.
2. On the EVAL-LTC9101-3-MB-AZ motherboard, set the CFG1
(JP21) jumper to HI to enable all ports. For CFG1 options see
Table 1 .
Table 1. EVAL-LTC9101-3 CFG1 Jumper Settings
Jumper
CFG1 (JP21)
LO
HI
Figure 2. Inserting the EVAL-LTC9101-3-AZ Daughter Card into J1 through J5 of the EVAL-LTC9101-3-MB-AZ Motherboard
analog.com
chipset configured as either an
Figure 2 through Figure
# of LTC9103s Max # of Ports
1 8
2 16
3. Align pin 1 of the 16-pin male connector P1 on the EVAL-
LTC9101-3-AZ daughter card with pin 1 of the 16-pin female
connector J11 on the EVAL-LTC9101-3-MB-AZ motherboard
as shown in Figure
female sockets should match. Keyed pins in J12 assist with the
alignment shown in
straight down until the male and female connectors are flush
4,
with each other.
4. Connect a supply to the EVAL-LTC9101-3-MB-AZ motherboard
with the positive rail to POS INPUT (+) and negative rail to NEG
INPUT (-) as shown in
sourcing the system power budget, refer to
supply up to within 51 V and 57 V.
NOTE: At start up, the Supply Overload LED (OVR), Status
LEDs (Green LEDs on J3 and J4), and Fault LEDs (Yellow
LEDs on J3 and J4) go through a default self test pattern. The
power on self test pattern will be repeated on a LTC9101-3
reset. This does not affect PoE operation and the LEDs will be
valid once the test pattern is complete.
5. Connect up to sixteen IEEE 802.3af/at/bt PDs to the mother-
board's RJ45 connectors J3 and J4, as shown in
NOTE: RJ45 ports 17, 18, 19, 20, 21, 22, 23 and 24 on J3
are blocked on the EVAL-LTC9101-3-MB-AZ motherboard in
the EVAL-LTC9101-3. See the section on
information.
EVAL-LTC9101-3
2. The five male connectors and five
Figure 3. Carefully push the daughter card
Figure 3. Use a power supply capable of
Table
Figure
Port Output
Rev. 0 | 4 of 10
1. Ramp the
4.
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