User`s guide

Configuring the Modem

Page

High-Speed (Fast Poll) Mode

Table 2-1 shows the modem switch settings that can be used when the

modem is configured for high-speed (Fast Poll) mode. This mode is

enabled when switch SW2-1 is set to OFF. Following this table is an

explanation of these settings.

Table 2-1. Modem Switch Settings for High-Speed Mode

Switch SettingsSwitches

ON OFF (Default)

SW 1-1

−

1-4: Transmit Level (page 14)

(see Table 2-2 on page 14)

SW 1-5: Receiver Dynamic Range

(page 15)

−

10 to

−

43 dBm +3 to

−

30 dBm

SW 1-6: TX Cable Equalizer (page 15) Enabled Disabled

SW 1-7: RX Cable Equalizer (page 15) Enabled Disabled

SW 1-8: Anti-streaming (page 15) Active Inactive

SW 2-1: High-Speed/Low-Speed Mode

(page 16)

Low-Speed Mode

(FSK)

High-Speed Mode

(Fast Poll)

SW 2-2: Data Rate in Fast Poll Mode 4800 bps 9600 bps

SW 2-3: Async Character 11 bits 10 bits

SW 2-4: Auto RTS (page 16) Enabled Disabled

SW2-5: Reserved

SW 2-6: Production Test Only (page 16)

Test Normal

SW 2-7: 2- or 4-wire (page 16) 2-wire, half-

duplex

4-wire, full-duplex

SW 2-8: Carrier Control (page 17) Constant Switched

SW 2-9: Rx Termination (page17) Disabled Enabled

SW 2-10: Ground Options Connected Disconnected