Chapter 10: Hardware Interfaces
Cradle/Handset Interface
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010
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10.3 Cradle/Handset Interface
The BDU has two 4-wire Cradle/Handset ports with RS-485 data control. The
handset can be used to setup the terminal and also can be used to make or
receive phone calls. The connector outline and pin assignments are described
in the figure and table below. Maximum cable length BDU to Handset/Cradle
is 40 meters.
C ra d le /H a n d s e t
Pin number
Pin function
1
Audio Out Hi
2
Audio Out Lo
3
Audio In Hi
4
Audio In Lo
5
+28 V DC
6
GND
7
SDA
8
SDB
9, 10, 11, 12, 13, 14, 15
-
Shield
GND
5
1
11
15
Summary of Contents for TracPhone F55
Page 22: ...Table of Contents x...
Page 28: ...Chapter 2 GMDSS Installations 6 Power Supply...
Page 40: ...Chapter 3 Placing the Antenna 18 Antenna Mast Design...
Page 48: ...Chapter 5 Installing the BDU 26 Grounding the BDU...
Page 54: ...Chapter 6 F77 Distress Cradle 32 Assembly Alternative...
Page 58: ...Chapter 7 F55 Passive Cradle 36 Passive Cradle Assembly...
Page 64: ...Chapter 8 Connecting Power 42 Power supply specification...
Page 84: ...Chapter 10 Hardware Interfaces 62 Discrete I O interface...
Page 116: ...Appendix C F55 77 BDU Technical Specifications 94 Measuring the Ship Source Impedance...
Page 120: ...Appendix D Distress Cradle Technical Specifications 98 Outline Dimensions...
Page 123: ...Chapter E Passive Cradle Technical Specifications Outline Dimensions 101 EEE...
Page 124: ...Chapter E Passive Cradle Technical Specifications 102 Outline Dimensions...