User`s guide

28 DC 900-1317J
ADCCP NRM Programmer’s Guide
Each serial port (link) on the ICP operates independently of the other links on the same
ICP and can be configured with different communication options. For example, each
data link may be configured to run at its own baud rate, ranging from 1.2 kb/s to
122.9 kb/s with internal clock, or to 128 kb/s with external clock. Protogate’s ADCCP
NRM Primary may be configured to poll up to 128 remote secondary stations. Stations
are configurable and may be assigned to any chosen link (physical port) on the ICP.
Because of the complexity of the ADCCP protocol and the speed limitations on charac-
ter interrupt servicing on the ICP, the peak data transfer rate on all ports combined can-
not exceed the nominal baud rates given in Ta bl e 1 –1 .
Table 1–1: ADCCP NRM Data Rate and Number of Links
Data Rate
(b/s)
ICP2432/
ICP2432B
2400 or less 8 links
4800 8 links
9600 8 links
19200 8 links
38400 8 links
64000 8 links
122880 4 links
128000
1
1
An external clock source is
required at 128000 baud.
2 links