System information

FCD 901 48
Issue R2A, 07.2009
XMP1 Release 5.5 System Description
Clock interface T3 and T4
Aastra Proprietary Information Page 1-11
SHDSL Repeater
• 1 pair Repeater acc. to ITU-T G.991.2
• Connecting two 2 SDSL links
• Remote powering with RPS-XMP1 module
• Local powering
• Inverse operation possible, e. g. LT/NT interchange
• SW download via Z bit
1.1.2.5 Clock interface T3 and T4
The Central Unit and SCU-E provide the clock interfaces T3 and T4 for
applying the 2048 kHz reference frequency and connecting a reference
frequency distributor.
1.1.2.6 Power supply interfaces
• 48 V/60 V power supply
1.1.2.7 SDSL interface (external)
Line Termination Unit (LTU) SDSL
• Minirack 1 HU, installation in 19“/ETSI racks
• Tabletop with optional 230V AC power supply
• Subrack 6 HU, installation in 19“/ETSI racks for equipment with 13 LTU
modules
1.1.2.8 Video interfaces
The video encoder and video decoder modules are used in the XMP1
system for the transmission of video signals.
• Video encoder
— 2 x video-in
— 1 x 2 Mbit/s IF
— 2 x data IF
• Video decoder
— 2 x video-out
— 1 x 2 Mbit/s IF
— 2 x data IF
• Data rate n x 64 kBit/s ( n = 1 to 31 for two IF)
• CIF resolution (288 lines x 256 pixel)
• acc. ITU-T H.261
• Transmission via 2 Mbit/s IF.
— balanced or unbalanced
— Data IF for camera control