
108
ACO6800
+
Installation and Operation Manual
Copyright © 2009, Harris Corporation
Chapter 9: Specifications
ASI Transport Stream Output Specification
Miscellaneous
General Purpose Interface
Table 9-5. ASI Transport Stream Output Specifications
Item
ASI Specification
Number of Outputs
4 (1 primary relay bypass) for
ASID
Standards
DVB-ASI, 270 MB/sec
Connector
BNC per IEC 169-8
Impedance
75
Return loss
>15 dB (typical) from 5 MHz to 270 MHz
Signal level
800 mV ± 10%
D.C. offset
0.0 V ± 0.5 V
Rise and fall time
400 ps to 1500 ps (20% to 80%)
Overshoot
<10% of amplitude
Jitter
< 0.2 UI (pk-to-pk)
Table 9-6. GPI/O Interface Specifications
Item Specification
GPI inputs
(transmitter)
• Number: 6 for ACO6800
+
DSD and
ACO6800
+
IDSD; 3 for ACO6800
+
ISCST,
ACO6800
+
ASID, and ACO6800
+
ISD
• Internally pulled HIGH
• External contact closure to ground to trigger
GPI outputs
(receiver)
• Number: 6 for ACO6800
+
DSD and
ACO6800
+
IDSD; 3 for ACO6800
+
ISCST,
ACO6800
+
ASID, and ACO6800
+
ISD
• TTL compatible
• Sink 64 mA, source 32 mA
Connector
Mini mate header