Model 5601ACO2 Automatic Changeover Unit
TECHNICAL DESCRIPTION Revision 1.2 Page 4-5
4.4.5. MSC General Purpose Inputs and Outputs
Inputs: 2 GPI inputs connected to both Master A and Master B
Outputs: 2 GPI outputs connected from Master A through AUXI/O A
2 GPI outputs connected from Master B through AUXI/O B
Connector: 6 pins on 16 pin removable terminal block
Signal Level: As specified in 5601MSC manual
4.4.6. Changeover Conditions
Changeover is a voting system based on which source has the most valid signals and that the good
signals on the current master are also present on the backup master. The input signals are considered
good according to the following criteria:
Video: Level above 70 IRE
Sync: H timing detect
SDI/HDSDI: Valid TRS ID
10MHz: Level above 1.0Vp-p
Word Clock: Level above 0.5Vp-p
DARS: Sync word valid
LTC: Level above 0.3Vp-p
Sync word valid
GPI: Input high
4.4.7. Ethernet
Network Type: Fast Ethernet 100 Base-TX IEEE 802.3u standard for 100 Mbps baseband
CSMA/CD local area network
Ethernet 10 Base-T IEEE 802.3 standard for 10 Mbps baseband CSMA/CD local
area network
Connector: RJ-45
Function: VistaLINK
®
control and status monitoring
4.4.8. Electrical
Power: Auto ranging 100 - 240 Volts AC, 50/60 Hz, 80 VA
Configuration: Dual redundant supplies
Fuse Rating: 250 V, 1 amp, time delay
Safety: ETL Listed, complies with EU safety directives
EMI/RFI: Complies with FCC Part 15 Class A regulations
Complies with EU EMC directive
4.4.9. Physical
Dimensions: 19” W x 3.5” H x 11.5” D
(483mm W x 90mm H x 292mm D)
Weight: 16 lbs. (7.0Kg)
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