Epson ESC/VP21 User Manual page 15

Fax/data modem

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Identification/Checksum Option

This command causes the modem to send product code and hardware setup informa-

tion to the DTE.

Buffer Control

This command selects whether the modem SRAM is used for voice and fax mode,

2 - COMMAND REFERENCE

Report product code. (default)

Firmware version #.

Verify ROM checksum.

Device set name.

Modem configuration.

0= Hayes Escape Sequence.

Bit 0

1 =TIES Escape Sequence,

Bit 1

0= Data/fax/voice without V.42/MNP firmware.

1 =Data/fax/voice with V.42/MN P firmware.

0= Serial host interface,

Bit 2

1 =Parallel host interface.

0=No external Static RAM present.

Bit 3

1 =External Static RAM present,

Bit 4

0=8K x 8 static RAM present. (valid only if bit 3 = 1 )

1 =32K x 8 static RAM present. (valid only if bit 3 = 1)

Bits 5-7 Reserved

SRAM buffer disabled. (default when no SRAM is available)

SRAM buffer enabled. (default when the SRAM is available

on modem board) (default)

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