Black Box MD885A-R2, User Manual

Page: 34 / 150

33
3.0 Modem Setup Options
Table 3-1. Effect of Speed Limit Settings on Data Rate
MAX RATE DIALER
SETTING, bps OPTION RESULTANT DATA RATE, bps
LEASED LINE MODES
14,400
1
xx 14,400
1
12,000
1
xx 12,000
1
9600 xx 9600
300 to 4800 xx 4800
EIA-CTRL xx 9600 or 4800
2
DIAL MODES—ANSWERING
300 to 14,400 1 xx Negotiated between minimum and
maximum setting
EIA-CTRL xx 9600 or 4800 2
DIAL MODES—ORIGINATING
300 to 14,400
1
OFF Negotiated between minimum and
maximum setting
EIA-CTRL OFF 9600 or 4800 2
xx HAYES 3 Negotiated between autobaud
speed and 300 bps
3
xx Does not matter—condition does not affect resultant data rate.
1
14,400 and 12,000 bps rates are for the Modem only.
2
9600 bps if EIA pin 23 is high, 4800 bps if pin 23 is low.
3
If SYNC AFTER DIAL is enabled (using the &Q1 command), the
rate is negotiated between the autobaud speed and 1200 bps.