Comtech EF Data RCF6001 - Manual (Page 27)

RCF6001 Satellite Terminal Maintenance
TM082 - Rev. 1.0 Page 4-7
channel. The basic frame structure used by the multiplexer is that specified in the IESS-309 standard,
Page 60, Figure 10, resulting in a 16/15 aggregate to through data ratio.
KBPS BAUD
9.6 300
19.2 600
32 600
64 1200
128 2400
192 4800
256 4800
320 9600
384 9600
448 9600
512 9600
576 9600
640 19200
704 19200
768 19200
832 19200
896 19200
960 19200
1024 19200
1088 19200
1152 19200
1216 19200
1280 19200
1344 19200
1408 19200
1472 19200
1536 19200
1600 19200
1664 19200
1728 19200
1792 19200
1856 19200
1920 19200
1984 19200
2048 19200
Two software controlled modes are designed into the card to best utilize the available bits; “Standard
. The characteristics of the channel interface is also determined by the standard or
Async mode.
The Async Channel can be set under software-control to either RS-232 or RS-485 mode. The pin
assignments for both modes are shown in Table 1. The “RS-485” setting controls the output into tri-state
when the modem is not transmitting data, allowing multiple modem outputs to be connected together.
3.8 Standard IBS Mode
In the first or "Normal" mode, all bit assignments are per the IBS standard. The bits of Overhead
Housekeeping byte 32 are implemented as shown below: