MC145572APB Freescale Semiconductor, MC145572APB Datasheet - Page 10

• Manufacturer Part Number: MC145572APB
• Description: IC ISDN INTERFACE TXCVER 44-LQFP
• Manufacturer: Freescale Semiconductor
• Type: Transceiverr

Specifications of MC145572APB

• Protocol: RS232
• Voltage - Supply: 5V
• Mounting Type: Surface Mount
• Package / Case: 44-LQFP
• Number Of Line Interfaces: 1
• Control Interface: HDLC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Number Of Drivers/receivers: -
• Lead Free Status / Rohs Status: Not Compliant

LEDs, SFS and LINKUP. This activation process should occur within 15 seconds. The NT side default
activation mode is an NT1 so the S/T-Interface is also trying to activate by continually transmitting the
The board is now ready for power.
Make certain the integrity of the power supply being used has been veriÞed to prevent any damage to the
MC145572EVK.
If everything is okay, the red LED ÒD27Ó near the power connector will be illuminated.
The yellow TP/AIP status LEDs on both the NT1 and LT sides should illuminate, followed by both green
INFO1 state on the S/T-Interface. If the red LED EI comes on, indicating an activation error has occurred,
re-check the integrity of the connections (i.e., does the ÒU-loopÓ twisted pair show continuity?). Retry if
necessary.
5. Connect + 5 V and ground leads to the proper pins on J19.
6. Turn the power supply on.
7. Connect a twisted pair between the two RJ-45 connectors, J12 and J2, at the top of the board.
8. Depress the RESET push-button (PB1). This push-button is located adjacent to the power
9. Now depress the push-button marked ACT/DEA (PB2) located near the status LEDs.
This is the ÒU-loop.Ó
connector.
TERMINAL
Figure 1-4. External Connections to the MC145572EVK
Freescale Semiconductor, Inc.
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J16
J12
NT
SIMULATOR
ISDN LOOP
PB2
J2
LT
PB1
+5
5 V/250 mA
MC145572EVK
J19
GND
11