Miranda NV8144, User Manual

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NV8500 family Digital Routers • User’s Guide 7
1. Introduction
Signal Rates and Flow
Figure 1-3. Example of NV8576 Outputs Signal Flow (Front View)
Expandable Routers
Expandable routers in the NV8500 family (NV8280-Plus and NV8576-Plus) can be used as a stan-
dalone router or connected to an identical router to increase the switching matrix. The signal flow
of inputs and outputs in an expandable router is identical to a standalone router, with one exception:
signals are being received from or distributed to a connected router. When two expandable routers
are connected, signals from one router are distributed to the second connected router, and vice
versa, through expansion connections and expansion output cards. Each output only goes through a
crosspoint card once. Before an output is forwarded to a connected router, it first goes through the
crosspoint card on the local router for switching to the expansion connections through which it is
FAN
OUTPUTS
1–144
INPUTS
1–144
XPT
(INPUTS 1–
288)
INPUT
MONIT
OR
(8 cards)
OUTPUTS
289–432
(8 cards)
OUTPUTS
577–720
(8 cards)
OUTPUTS
865–1008
(8 cards)
OUTPUT
MONIT
OR
(16 cards)
INPUTS
289–432
(16 cards)
OUTPUTS 1–576 OUTPUTS 577–1152
OUTPUTS
145–288
(8 cards)
INPUTS
145–288
(16 cards)
INPUTS
433–576
(16 cards)
(not used)
FAN
OUTPUTS
433–576
(8 cards)
OUTPUTS
721–864
(8 cards)
OUTPUTS
1009–1152
(8 cards)
INPUT
MONIT
OR
OUTPUT
MONIT
OR
SEC. CONTROL PRIM. CONTROL
XPT
(INPUTS 1–
288)
XPT
(INPUTS 289
–
576)
XPT
(INPUTS 289
–
576)
XPT
(INPUTS 1–
288)
XPT
(INPUTS 1–
288)
XPT
(INPUTS 289
–
576)
XPT
(INPUTS 289
–
576)
REDUNDANT
CROSSPOINT