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Harris Corporation
Constellation™
Customer Access Areas
A-5
WIRING
SPECIFICATIONS
Customer Access Areas
External Alarm/Control Connector
Located at the top left side of the radio, this 50-pin D connector (
) is
available for customer-configured alarms. The SPU Controller provides 8 opto-
isolated alarm inputs. The system provides 8 dry-contact, relay outputs as
defined in
. The Service Channel provides the Callout outputs.
lists the relay specifications.
Figure A-7: Constellation backplane (top left)
Table A-1: Relay specifications
Characteristic
Value
Nominal switching capacity (resistive)
2 A, 60 Vdc
Max. switching power (resistive)
60 W
Max. switching voltage
220 Vdc
Max. switching current
2 A
Min. switching capability
10
µ
A, 10 mV dc
BAT A BAT B RET
24/48VDC
HARRIS Constellation Backplane
TO FUSE PANEL
ALARM I/O
Filter
Filter
Filter
Filter
26
1
25
50
External
alarm/control
connector
J1
J2
Summary of Contents for Constellation
Page 1: ...Point to Point Digital Radio Constellation Installation Maintenance...
Page 2: ......
Page 4: ...Constellation November 2003...
Page 18: ...Constellation November 2003 xii List of Figures...
Page 24: ...Constellation November 2003 xviii Preface...
Page 26: ...Constellation November 2003 xx Preface...
Page 96: ...Constellation November 2003 4 12 Loopback Testing...
Page 110: ...Constellation November 2003 5 14 Configuring the Constellation Radio...
Page 134: ...Constellation November 2003 7 14 SNMP Based Network Management...
Page 210: ...Constellation November 2003 11 36 Field Replaceable Units...
Page 238: ...Constellation November 2003 A 16 Wiring Specifications...
Page 260: ...Constellation November 2003 C 10 Hardware Compatibility Tables...
Page 276: ...Constellation November 2003 Glossary 6...
Page 291: ......