Page 2.1
MEMS FIBER OPTIC SWITCH MODULE 40-855
pickering
SECTION 2 - TECHNICAL DESCRIPTION
SECTION 2 - TECHNICAL DESCRIPTION
FUNCTIONAL DESCRIPTION
Functional block diagrams for the 40-855 are provided in Figures 2.1 and 2.2. The Fiber Optic Switch Module is
powered by a +5V input via Compact PCI connector J1. The module comprises Fiber Optic switches which connect
an optical channel by redirecting the optical signal received at the common input into a selected output fibre. This is
achieved using Micro-Mechanical Mirrors driven by a highly precise mechanism. These are activated by electrical
control signals via buffers from driver devices. The registers of the drivers are addressed by PCI bridge U1 to output
the required signal. PCI Bridge U1 is configured by EEPROM U2.
SW1
MODULE
CONFIGURATION
U5, U6 AND U7
PCI BRIDGE
U1
PCI BRIDGE
CONFIGURATION
U2
TERMINATING
RESISTORS
R4 TO R15
COMPACT PCI
BUS
CONNECTOR
J1
0V
DRIVER
U8
+5V
CHANNEL 1
CHANNEL 2
COMMON
OUTPUT
BUFFER
U10
SW3
CHANNEL 1
CHANNEL 2
COMMON
Figure 2.2 - Dual Fiber Optic Switch Module 40-855: Functional Block Diagram
SW2
MODULE
CONFIGURATION
U5, U6 AND U7
PCI BRIDGE
U1
PCI BRIDGE
CONFIGURATION
U2
TERMINATING
RESISTORS
R4 TO R15
COMPACT PCI
BUS
CONNECTOR
J1
0V
DRIVER
U8
+5V
CHANNEL 1
CHANNEL 2
COMMON
OUTPUT
BUFFER
U10
Figure 2.1 - Single Fiber Optic Switch Module 40-855: Functional Block Diagram
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