
DS33Z41DK
8 of 44
Figure 1. System Floorplan
Figure 2 shows the DS21458 quad T1/E1 PC board floorplan. The current configuration is to populate oscillators
for MCLK1 with a 8.192MHz oscillator. Testpoints for port 3 and port 4 are provided on the WAN card, and
testpoints for ports 1 and 2 are provided on the motherboard.
Figure 2. DS21458 Resource Card Floorplan
DS33Z41 MAINBOARD
DS33Z41
SDRAM
ETHERNET PHY,
MAGNETIC,
LEDS, AND
JUMPERS
MICROPROCESSOR
AND SERIAL PORT
(57600-8-N-1)
HARDWARE
MODE SWITCHES
FOR DS33Z41
SERIAL INTERFACE
2 X 140 PIN CONNECTORS
LEDS AND TESTPOINTS
DS21458 RESOURCE CARD
(DETAIL PROVIDED BELOW)
PORT 2
PORT 4
PORT 1
PORT 3
DS21458
QUAD-PORT
T1/E1
TRANSCEIVER
140 PIN CONNECTORS
TEST POINTS
FPGA
OSC
MCLK1, 2
TA
QUAD-PORT RJ45
QUAD
RLOS LEDS
INT LED
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