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Hardware Description 2-7
Vanguard Daughtercards
Vanguard Daughtercards
Introduction The Vanguard 342 can support these standard Vanguard Daughtercards:
• 1-Port FXS/FXO Voice
• 2-Port Voice FXS
• 4-Port Voice FXS
• 4-Port Voice FXO
• FT1/FE1
•Dual E&M
• ISDN BRI-U Data
• ISDN and Enhanced ISDN BRI-S/T Data and Enhanced ISDN BRI S/T Data
• ISDN BRI-S/T Voice
•DSU
•DIM
• V.90 Daughtercard
• G.SHDSL
This section briefly describes these cards.
For instructions for installing these cards, refer to the Vanguard Daughtercard
Installation Guide (Part Number T0020).
Daughtercard
Compatibility
Older Vanguard Daughtercards do not fit into the Vanguard 342. You can only use
the newer daughtercards which are identified by a dimple as shown in Figure 2-4. If
the dimple is not present, do not attempt to use the Daughtercard in the Vanguard
342. and V.34 Daughtercards are obsolete.
Also, when installing a Vanguard Daughtercard into a Vanguard 342, you must use
the shorter two-sided header. The taller header is used with other Vanguard units.
Figure 2-4. New Vanguard 342 Daughtercard Example
Caution
If you attempt to force an older Vanguard Daughtercard into a Vanguard 342, the
equipment will be damaged.
If you have an older Vanguard Daughtercard and would like to use it in a Vanguard
342, contact your VanguardMS representative about having the card reworked.
Dimple
DSU