Motorola 49901 - Vanguard 340 Router, Инструкция по эксплуатации

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Hardware Description 2-7
Motherboards
Access the
Motherboard To access the motherboard components you must remove the motherboard from the
enclosure.
For information about removing and installing the motherboard refer to the
“Accessing the Motherboard” section in Chapter 3.
For information about removing or installing motherboard components, refer to the
“Modifying Your Vanguard 340 and 340 Enhanced” section in Chapter 3.
Daughtercards The Vanguard 340 and 340 Enhanced can support two optional daughtercards. These
daughtercards are described in the “Vanguard Daughtercards” section on page 2-9.
Note
If you are only using one ISDN or enhanced ISDN BRI daughtercard, the card
must be located in the Port 1 position. If you are using Release 6.3 and greater,
the enhanced ISDN BRI ST data daughtercard must be located in port 1 and the
ISDN BRI voice card would go in port 2. For more information refer to Chapter
Five of the
Daughtercard Installation Guide (Part Number T0020).
Serial Interface The Vanguard 340 and 340 Enhanced support a serial interface that is installed on the
motherboard. The serial interface can be configured to function as a Digital Interface
Module allowing the support of these interfaces on Port 3 only:
• V.24
• V.35
• V.36
• V.11/X.21
For information on configuring the serial interface, refer to the “Configuring the
Serial Interface” section in Chapter 3. The serial interface supports only DCE. It can
accommodate DTE with the use of a crossover adapter cable. For information on
cabling for DTE capability, refer to the “V.35/V.36, and X.21/V.11 Interface Types”
section in Chapter 3.
SIMMs and DIMM The Vanguard 340 motherboard has three slots:
• SDRAM: This connector takes a standard DIMM.
• FLASH: This connector takes a FLASH SIMM to support alternate bank
FLASH options.
• Data Compression/Encryption: Set on its side, this connector takes a SIMM to
provide data compression and encryption capabilities.
The Vanguard 340 Enhanced motherboard has three slots:
• SDRAM: This connector takes a standard DIMM.
• FLASH: This connector takes a FLASH SIMM to support alternate bank
FLASH options.
• ECC DIMM - supports DES, Triple DES (168-bit) and AES Encryption.
Caution
To avoid damaging the equipment, be sure to place the SDRAM DIMM, and the
FLASH, and Data Compression/Encryption SIMMs in the correct slot.