JAI BB-500 GE, Руководство пользователя

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BM-500GE / BB-500GE
34
Fixed value
Item Unit value
Data Leader Packet Size [Bytes] 90
Data Trailer Packet Size [Bytes] 64
Formula to calculate Data Transfer Rate
J=
｛
90+64+(E+18)*(G-2)
｝
*8*D/1000000
Where,
G=ROUNDUP{A*B*C/8/(E-36)}+2
The following table shows Bits per Pixel (Item C) which depends on the pixel format.
Pixel format Bit
Mono8,BAYGR8 8
Mono10_Packed/Mono12_Packed 12
Mono10,Mono12,BayGR10,BAYGR12 16
Calculation example: CM-140GE Pixel type RGB8
Item Unit Symbol Setting
Image Width [pixels] A 2456
Image Height [pixels] B 2058
Bits per Pixel [bits] C 8
Frame Rate [fps] D 15
Packet Size [Bytes] E 4046
Number of Packets (including Data Leader & Trailer
Packet)
[packets] G
Data Transfer Rate [Mbit/s] J
G=ROUNDUP{(2456x2058x8/8/(4046-36))+2=1261+2=1263
J={90+64+(4046+18)x(1263-2)}x8x15/1000000=615 Mbit/s
8.3.5 Simplified calculation (Approximate value)
A simple way to calculate the approximate data transfer rate is the following.
Transfer data = Image width (pixel) x Image Height (pixel) x depth per pixel(depending
on the pixel format) x frame rate / 1,000,000 (convert to mega bit)
In the case of the CM-200GE with the full image and MONO8 pixel format;
The data transfer rate = 2456 x 2058 x 8 x 15 / 1000000 = 607 Mbit/s
8.3.6 Note for 100BASE-TX connection

In case of connecting on 100BASE-TX, the maximum packet size should be 1500 byte.

In case of connecting on 100BASE-TX, the specifications such as frame rate, trigger
interval and so on described on this manual cannot be satisfied.
Pixel Type Frame rate at Full Frame[fps]
MONO8, BAYRG8, BAYGB8
5.8
～
6.0
MONO10_PACKED
3.8
～
4.0
MONO10, BAYRG10, BAYGB10
2.8
～
3.0

100BASE-T works in FULL DUPLEX. It does not work in HALF DUPLEX.