Seagate ST3390N Installationsanleitung Seite 430

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B-22 Modem configurations
UDS modems
Standard 1.0 Modular Option EC Installation and Maintenance Guide November 1999
UDS EC 224 A/D modem hardware configuration for 2400
bps operation
Front panel switches
Rotary switch:
—DATA position when using terminal to dial.
—TALK position when using TELSET to dial. Switch to DATA position
once connected.
Three-position toggle switch: HI position 2400 bps Speed Select.
Circuit board mount DIP switches
Switch 1 (S1)
S1-1 On Attempt MNP error correction protocol
S1-2 Off Disable DCE independent speed
S1-3 Off Switched network
S1-4 On Private line originate
S1-5 On Enable auto-answer
S1-6 Off Operate in 224 A/D mode
S1-7 Off Disable TX space disconnect
S1-8 Off Disable RX space disconnect
Switch 2 (S2)
S2-1 On 8 bits no parity, 1 start, 1 stop
S2-2 Off
S2-3 Off
S2-4 Off CTS DTE flow control
S2-5 On
S2-6 Off No DCE flow control
S2-7 Off
S2-8 Off Bell 212A @ 1200 bps
S3-1 Off DTR disconnect disabled
S3-2 On Carrier disconnect = 100mS
S3-3 Off Disable use of CH pin
S3-4 Off Disable DTE Analog loopback
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