Specifications

Excalibur Multirate DAP Installation and Operation
5-20
You can use this channel only with asynchronous data protocols. The character format is
one start bit, eight data bits, and two stop bits. The available DTE rates depend on the
service and the DDS line rate as listed in Table 5-5.
Table 5-5. Clear Secondary Channel Rates
DDS Line DDS-SC, LADC
1
, LDM DDSNI, C64NI
2.4 Kbps 75 bps 75 bps
4.8 Kbps 75, 150 bps 75 bps
9.6 Kbps 75, 150, 300 bps 75, 150 bps
19.2 Kbps 75, 150, 300, 600
2
bps 75, 150, 300 bps
56 Kbps 75, 150, 300, 600
2
, 1200
2
bps 75, 150, 300 bps
64 Kbps Not Applicable 75, 150, 300 bps
1. Only available for units equipped with the Model A or C Aggregate card.
2. The 600 and 1200 bps rates are not available for units equipped with the
Switched 56 or ISDN IDBU feature.
Network Delay
This parameter allows you to select the round trip delay time plus the remote unit
response time for data to be sent from the central unit to the far-end remote unit and back
to the central unit. This parameter is available only when the service is set for DDSNI,
the Location parameter is set to central, and the Network parameter is set to multipoint.
Four options are available:
• Short - 568 milliseconds for line rates of 2.4 and 4.8 Kbps, 380 milliseconds
for a line rate of 9.6 Kbps (multiport framing disabled), and 132 milliseconds for
line rates of 9.6 (multiport framing enabled), 19.2, and 56 Kbps.
• Med - 616 milliseconds for line rates of 2.4 and 4.8 Kbps, 432 milliseconds for a
line rate of 9.6 Kbps (multiport framing disabled), and 180 milliseconds for line
rates of 9.6 (multiport framing enabled), 19.2, and 56 Kbps.
• Long - 688 milliseconds for line rates of 2.4 and 4.8 Kbps, 500 milliseconds for
a line rate of 9.6 Kbps (multiport framing disabled), and 252 milliseconds for line
rates of 9.6 (multiport framing enabled), 19.2, and 56 Kbps.