Paradyne 7974 Installation Instructions Manual

Also see for Hotwire 7974: Installation instructions User guide User guide Wall Mounting Installation Instructions User guide

Contents

Paradyne 7974 Installation Instructions Manual Manual pdf 27 page image

27Model 7974 Switchpack DefinitionsTable 12 through Table 15 list Model 7974 Switchpack definitions.Table 12. Switchpack S4 Definitions (Model 7974)Switch # . . . Allows you to . . .Default in Bold1 Enable or disable Switchpacks S3 and S4.OFF = Switchpacks DisabledON = Switchpacks Enabled2 Not used3 Select the unit’s primary timing source. Valid only for a unitconfigured as the LTU.OFF = Internal ClockON = DSX-1 Clock4 Control the unit’s T1 line coding.OFF = B8ZSON = AMI5 Control the unit’s framing formatOFF = ESFON = D46, 7, 8 Control the unit’s line equalization. Refer to Table 13, LineEqualization, Switches 6– 8 on Switchpack S4 (Model 7974). Thethree switches form a binary value used as an index to the table ofequalization values. Off denotes 0 (zero) and On denotes 1 (one).000 (all Off) = 0–133 feetTable 13. Line Equalization, Switches 6– 8 on Switchpack S4 (Model 7974)Switch PositionLine EqualizationDefault in Bold8 7 6OFF OFF OFF 0–133 feetOFF OFF ON 133–266 feetOFF ON OFF 266–399 feetOFF ON ON 399–533 feetON OFF OFF 533–655 feetON OFF ON 0–133 feetON ON OFF 0–133 feetON ON ON 0–133 feet