226
Chapter 7 Plug-in Modules
N2281A Dual 1-to-4 Optical Switch Module
7
N2281A Dual 1-to-4 Optical Switch Module
The Agilent N2281A Module consists of two 1-to-4 optical switches. The
two optical switches are non-latching. For each switch, only one channel
can be closed at a time. Closing one channel will open the other channel
in the same switch. After power on or a reset, the common channel of
each 1-to-4 optical switch is connected to the third channel by default.
Specifications for the N2281A are given on page 327.
N2281A Simplified Schematic
A simplified schematic is shown below. The Agilent N2281A consists of
two independent 1-to-4 optical switches. Channels are numbered as 00,
01, 02, 03 for COM0 and 10, 11, 12, 13 for COM1. The third channel of
each 1-to-4 optical switch is connected to the common channel by default.
Ch00
Ch01
Ch02
Ch03
Ch10
Ch11
Ch12
Ch13
COM1
COM0
No r ma lly c lose d
No r ma lly c lose d