Procentec ComBricks - Page 101

ComBricks User Manual v6.4.0 | January 18| © PROCENTEC 101/219
Baudrate
Max
TSDR
FO
delay
(in bit times)
N
delay
(in bit times)
12Mbps
800
240
84
6Mbps
450
120
43
3Mbps
250
60
22
1.5 Mbps
150
30
12
500 kbps
100
10
6
187.5 kbps
60
3
5
93.75 kbps
60
2
5
45.45 kbps
400
2
5
19.2 kbps
60
1
4
9.6 kbps
60
1
4
The total delay for the entire network must be set as the new Slot time (T
slot
) setting in the busparameters of
the master.
Example 1: 1.5 Mbps, 5 km FO cable, 6 FO ring modules
Max
TSDR
+ (FO
length
× FO
delay
) + (N
FO-modules
× N
delay
)
150 + (5 x 30) + (6 x 12)
150 + 150 + 72 = 372 bit times
It is required to change the T
slot
to a value higher than 372.
Example 2: 6 Mbps, 3 km FO cable, 10 FO ring modules
Max
TSDR
+ (FO
length
× FO
delay
) + (N
FO-modules
× N
delay
)
450 + (3 x 120) + (10 x 43)
450 + 360 + 430 = 1240 bit times
It is required to change the T
slot
to a value higher than 1240.