MECHANICAL
Standard Crystal Vision module 266mm x 100mm
Weight: 155g
Power consumption: 2 Watts

VIDEO INPUT
One input
SDI 270Mbit to EBU 3267-E and SMPTE 259M
Cable equalisation >250m Belden 8281 or equivalent
Auto 625/525 line selection

VIDEO OUTPUTS
Maximum of eight reclocked SDI outputs (five outputs with frame rear module RM01 and eight with RM02 and RM18)
Will drive >250m Belden 8281 or equivalent

DELAY THROUGH BOARD
<1us

SIGNAL CHECKS
Input present: Based on correctly positioned valid sync words in the data stream to avoid high levels of spurious noise or non-valid SDI signals such as ASI from setting the state to valid. If a valid input is not present then an alarm will be raised
Input video standard: Displays if incoming signal is PAL (625 lines) or NTSC (525 lines)
Input video standard changed: If the standard changes then an alarm can be triggered
Active video black: If all the luma within the active picture area is less than 13mV from nominal black value then an alarm will be triggered. The period of time for which the picture must remain black can be set from 0 to 240 seconds
Active video frozen: An active picture checksum is calculated, and if it remains unchanged than an alarm condition will be set. The period of time for which the picture must remain frozen can be set from 0 to 240 seconds
Selected audio group present: The user defines which embedded audio group they wish to monitor in the video stream. If that audio group is missing, an alarm is triggered
Audio silence: A separate audio level check is performed for each of the four audio channels in the selected group. If the audio signal level falls below -66dBm (-84dBFS) relative to full scale for a period of time defined by the user, then an alarm is triggered. Each audio channel has its own alarm state and therefore normally silent channels (often 3 and 4) can be set to be ignored

The following can also be monitored if the incoming video includes EDH packets:
EDH missing: If the incoming SDI has EDH and it disappears then an alarm condition is set
EDH active picture: As part of the EDH standard (SMPTE RP165) a checksum is calculated for just the active picture of the video. If an error is detected in the active picture then an alarm condition is set
EDH full field error: The full field error compares the checksum for the whole field, including picture and ancillary data

LED INDICATION OF:
Power supplies on board
SDI input present
Audio channel silence
Video/audio error

GPI OUTPUT LEVELS
Electrically: Open collector transistors 30V, 330Ohm current limit resistors. Pulled up to +5V through 10kOhm

GPI OUTPUTS
Two GPI outputs
Local mode: SDI input present and picture frozen or black
Remote mode: Both GPIs are user configurable. The following alarm conditions can be set to trigger GPI 1, GPI 2 or No GPI: input missing, input standard changed, input black, input frozen, audio group missing, silence on audio 1 to 4, EDH error and EDH missing. The user can set a number of different alarm conditions to trigger GPI 1 or GPI 2 allowing, for example, one GPI to signal major alarms and one to signal minor alarms

LOCAL CONTROL
Selection of:
Audio monitoring on/off
Audio group to be monitored
GPI alarm for silence on audio channels in group being monitored

REMOTE CONTROL AND MONITORING
RS422/485
19200 baud, 8 bits, 1 stop no parity
Statesman allows control and status monitoring from any PC on a network
SNMP monitoring and control available as a frame option