Grass Valley AMX-3981 2014 - Manual (Page 12)

GUIDE TO INSTALLATION AND OPERATION
6 | AMX-3981
2.4.2 Summary of rear panel connections
AMX-3981-75D-3SRP
AMX-3981-110-3SRP
AMX-3981-75-3DRP-F
AMX-3981-110-3DRP-F
Single-slot-width panel ♦ ♦
Double-slot-width panel ♦ ♦
CONNECTORS
3G/HD/SD IN 1 1 1 1
3G/HD/SD OUT 4 2 2 2
AES IN (110
Ω) on D-SUB 8 8
AES IN (75
Ω) on BNC 8 8
GPI (#) & RS-422 on D-SUB 3
GPI (#) and RS-422 A on RJ45 3
LTC IN on BNC ♦ ♦
GPI (#), LTC IN and RS-422 A on RJ45 2 2
Fiber I/O module
♦ ♦
2.4.3 Details of rear panel connections
3G/HD/SD SDI IN – Serial digital 3G/HD/SD input
Connect a serial digital video signal, conforming to the SMPTE 425M standard for 3G input signals, SMPTE 292M
standard for HD input signals or SMPTE 259M standard for SD input signals, to the BNC labeled 3G/HD/SD SDI IN.
The AMX-3981 will automatically switch to the detected line/frame rate format.
• Note: if you are using the Densité frame’s URS signal as the reference, then you must make sure that the input
SDI is locked to the URS.
3G/HD/SD SDI OUT – Serial digital video outputs
The AMX-3981 provides two or four (depending upon the rear panel in use) 3G/HD/SD SDI video outputs on BNC
connectors, labeled 3G/HD/SD OUT 1, 2, 3 and 4. The SDI video signal conforms to the SMPTE 425M, SMPTE
292M or SMPTE 259M-C standard. The same signal is carried on all outputs.
AES IN – Discrete AES3 digital audio inputs (8)
The AES inputs can be configured for 110 ohm impedance using a 26-pin D-SUB connector, or 75 ohm impedance
using BNC or DIN 1.0/2.3 connectors. Rear connector panels are available for each option.