4230-mmm & 4230-mmx.ib.rev4.doc
Page 8 of 17
17/10/2007
MMM-4230 34Mb version:
Maximum payload Data Rate
30.86 Mb/s (for 188 byte packet),
33.5 Mb/s (for 204 byte packet).
Channel Data Rate Assignments
I/P1
I/P2
I/P3 I/P4 (Mb/s)
(for 188 byte packet length signals)
30 +
0 + 0
+ 0
27 + 3.8 + 0 + 0
23 + 7.7 + 0 + 0
19 +
11.5 + 0 + 0
15.4
+
15.4 + 0 + 0
23
+
3.8
+
3.8
+
0
19
+
7.7
+
3.8
+
0
15.4
+
11.5
+
3.8
+
0
15.4
+
7.7
+
7.7
+
0
11.5
+
11.5
+
7.7
+
0
19
+
3.8
+
3.8
+
0
15.4 + 7.7 + 3.8
+ 3.8
11.5 + 11.5 + 3.8
+ 3.8
11.5 + 7.7 + 7.7
+ 3.8
7.7 + 7.7 + 7.7
+ 7.7
In particular, for
204 byte packets
the following allocation is possible.
Channel Data Rate Assignment
Switch 1 Position
I/P 1
I/P 2
I/P 3
I/P 4
0 33.5
- - -
1 29.31
4.18
- -
2 25.12
8.37
- -
3 20.93
12.56
- -
4 16.75
16.75
- -
5 25.12
4.18
4.18
-
6 20.93
8.37
4.18
-
7 16.75
12.56
4.18
-
8 16.75
8.37
8.37
-
9 12.56
12.56
8.37
-
A 20.93
4.18
4.18
-
B
16.75 8.37 4.18 4.18
C 12.56
12.56
4.18
4.18
D
12.56 8.37 8.37 4.18
E
8.37 8.37 8.37 8.37
F Remote
And for
188 byte packets
the following is true –
Channel Data Rate Assignment
Switch 1 Position
I/P 1
I/P 2
I/P 3
I/P 4
0 30.86
- - -
1 27.00
3.85
- -
2 23.14
7.71
- -
3 19.28
11.57
- -
4 15.43
15.43
- -
5 23.14
3.85
3.85
-
6 19.28
7.71
3.85
-
7 15.43
11.57
3.85
-
8 15.43
7.71
7.71
-
9 11.57
11.57
7.71
-
A 19.28
3.85
3.85
-
B
15.43 7.71 3.85 3.85
C 11.57
11.57
3.85
3.85
D
11.57 7.71 7.71 3.85
E
7.71 7.71 7.71 7.71
F Remote
Note: For Channel allocation selection by SNMP control the Data Rate switch (SW1) must be set to “F”.
These data rates are only the maximum allowed for the channel. Any lower rate may be used.
