Part No. T0264, Rev A
April, 2003
Page 1 of 2
VANGUARD
HARDWARE ADVISORY NOTICE
Installing A Daughtercard Header
Introduction
This notice describes how to install an existing daughtercard from a Vanguard 100,
300, 305, and 320 into a Vanguard 340/342 using a newer interface header.
Vanguard
Daughtercard
Header Update
In order for customers to use their existing daughtercards in a Vanguard 340/342
chassis, they will have to use a different size daughtercard header. The product code
that supports the Vanguard 340/342 is 1152-10006.
Installation
Figure 1 shows the different style daughtercard header pins. The newer header pins
for the Vanguard 340 and 342 are shorter than the header pins in an older unit. The
shorter pins connect to the motherboard.
Vanguard 340/342
Interface Header Pins
Product Code 1152-10006
shorter
pins
connect
to the
motherboard
68-pin Male-to-Male Interface Header
68-pin Male-to-Male Interface
Header
Used to connect a daughtercard to a
Vanguard 100, 300, 305, 320
motherboard.
Used to connect a daughtercard to a
Vanguard 340 and 342 motherboard.
Figure 1. Daughtercard Header Pins
Note
Most older style cards can be used in the Vanguard 340 and 342 units. The
minimum revision that can be used for the FXS/FXO card is B. Do not force any
older cards into the newer units, they should fit
easily.
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