Artesyn ARTM-831X Installation and Use (June 2014) - Manual (Page 89)

Functional Description
ARTM-831X Installation and Use (6806800M76E) 89
4.4.3.4 ESSI Interface and Routing
The Extended SONDET/SDH Serial Interface (ESSI) working and protect links, are used to
provide equipment protection between two ARTM-831X within a system configuration.
Therefore the ESSI signals are routed through the Zone 3 connectors towards the front board.
The front board provides the ESSI signals through the Zone 2 connector Update Channel
towards a second ATCA-8310 node. For details, see Figure 4-1 Block Diagram in ATCA-8310
Installation and Use Manual.
4.4.4 E1/T1 Framer-LIU
Two octal-E1/T1 Framer-LIU combo devices provide a total of 16 E1/T1 base rate TDM
interfaces on the ARTM-831X assembly via one VHDCI connector. Each framer is connected to
the TSI FPGA using H-MVIP interface for payload transactions and local bus for control and
configuration. Additionally Monitoring/Alarm signals and recovered clocks are delivered also
to the TSI-FPGA.
Figure 4-13 ESSI Signal Routing with 1+1 Redundant ATCA-8310 Nodes
ARTM-831X /w DS3/OC3 mezzanine expansion unit
ATCA-8310
Node Board B
OC-x
Transmitter
(working)
Linear
APS
SFP optical I/O
OC-x
Receiver
(working)
PM8310
ESSI
Transmitter
(working&protect)
ESSI
Receiver
(working&protect)
ATCA
-Backplane
ATCA-8310
Node Board A
P30 P30
P23 UC
OC-x
Transmitter
(working)
Linear
APS
SFP optical I/O
OC-x
Receiver
(working)
ESSI
Transmitter
(working&protect )
ESSI
Receiver
(working&protect)
PM8310
Slot separation
P30
P23 UC
P30
ARTM-831X /w DS3/OC3 mezzanine expansion unit