User Manual

ADCP-75-192 • Issue D • October 2005 • Section 2: Description
Page 2-24
 2005, ADC Telecommunications, Inc.
• Clock Test Points
1 PPS – One Pulse Per Second from GPS
REF – 9.6 MHz RF Reference Clock
Samp – 42.912 MHz Sample Clock
• LED’s
PLL lock – Yellow – indicates the phase lock loop circuit is locked
FLT – Red – indicates there is a fault with the HRM
PWR – GRN – indicates power is applied to the HRM
Refer to the Digivance CXD Installation Manual for details on I2C configuration.
(9) 12 VDC
IN P UT
(1) CLOCK OUT
(7) 1 HZ LED
(5) I2C CONNECTORS
(4) I2C ADDRESS
SWITCH
(2) P OWER LED (3) FAULT LED
(8) P P L LOCK LED
(6) 9.6 MHz
CONNECTORS
Figure 2-17. Hub Reference Module Rear Panel
Table 2-16. HRM Rear Panel User Interface
REFN
o.
USER INTERFACE
DESIGNATION DEVICE FUNCTIONAL DESCRIPTION
1 GPS Clock Out RJ-45 GPS signal output connectors
2 Power LED Single-colored LED
(Green)
Status indicator turns green when module
has power.
3 Fault LED Single-colored LED
(Red)
Status indicator turns red when module has
failed.
4 I2C Address Switch Recessed switch
5 I2C Connectors RJ-45 connectors I2C interface
6 Power LED Single-colored LED
(Green)
Status indicator turns green when module
has power.
7 PPL Lock Single-colored LED
(Yellow)
Status indicator when phase lock loop
circuit is locked
8 1 Hz LED Single-colored LED
(Yellow)
Status indicator when 1 Hz signal detected
9 GPS RS-232 DB9 connector Output of GPS signal to STF2 module