GB/T 3047.4-1986 Basic dimension series of plug-in boxes and plug-ins with a high-speed system of 44.45 mm

GB/T 3047.4-1986 High-speed basic size series of plug-in boxes and plug-ins with a high-speed system of 44.45 mm GB/T3047.4-1986 standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Serles of basic dimensions of subracks and plug-in units for yertical increment of 44.45mm
UDC 621.3-2
GB 3047.4--88
1.1 This standard specifies the basic dimensions of subracks and plug-in units installed in racks and cabinets that comply with the provisions of Part 2 of GB3047.1-82 "Basic dimensions of panels, racks and cabinets". 1.2 The illustrations shown in this standard are not used as specific structural design drawings. 1. This standard is formulated with reference to the international standard IFC297-3 "482.6mm (19in) series mechanical structure dimensions Part 3: Subracks and corresponding plug-ins".
2 Typical structure system diagram of electronic equipment (see Figure 1) Issued by the National Bureau of Standards on April 4, 1986
Trial implementation on January 1, 1987
3 Basic dimensions of plug-in boxes and plug-ins
GB3047.4-86
Figure 1 Typical structure system diagram of electronic equipment
3.15.08mm width series plug-in basic dimensions (see Figure 2, Figure 3): 3.54-
First case installation
First water half line
First printed board center line
GB 8047.4-~86
Figure 2 Basic dimensions of plug-in boxes for installing embedded plug-ins, the guide groove width must adapt to 1.5, 1.6, 2mm thick printed boards. D
Realization dimensions. Method of fixing
Enlarged
See the enlarged figure in Figure ② for the preferred form of the embedded panel. When designing horizontal components, the enlarged figure shown in Figure 4 should be considered. Other fixing methods are also allowed.
Higher one mounting hole position
First water half energy line
Second first printed board center line
GB $047. 4 86
Figure 3 Basic dimensions of the plug-in box for installing the spliced ​​plug-in
8.1.1 The type, size H, size B, notch size and notch position of the plug-in box panel shall comply with the relevant provisions of the second part of GB 3047.1-82.
3.1.2 Dimensions in width direction (see Table 1): Table 1
Telescopic guide rail not installed on the side wall
84 x 5.08
109 × 5.08
Telescopic guide rail installed on the side
81 × 5.08
106 × 5. 08
*When the thickness of the printed board is 1.6+0.2mm and the connector complies with the "General Specification for Connectors for Printed Boards with Frequencies Below ? MHz" standard (under preparation), the A4 value is 3.27mm.
3.1.3 Dimensions in height direction (see Table 2): Panel
3.1.4 Dimensions in depth direction:
GB 304T.4-86
245:35
Depends on
Depends on the connector used
The preferred dimensions of D are: 112, 24, 172.24, 232.24, 292.24mm. When necessary, dimension D can be increased by 60mm increments. 3.2 Basic dimensions of 5.08mm width series plug-in (see Figure 4, Figure 5 and Table 3) 9
了,62-
Horizontal spacing line
Printing version
Horizontal spacing line:
Printed board
GB 304T-4-86
Print head-
Enlarged view
Figure 4 Basic dimensions of printed board plug-in
Note: For panels with a width of 5.08m, 7.62 should be reduced to 2.54mm. d
Printing position required
Printing position
A + n × 5. 08
Interval line
GB 8047.4--86
24+n × 5.08a × 5.08
month × 5.0m
Short distance
++X508#5.08
Figure 5 Basic dimensions of cassette plug-in
Series I
Series II
Series-I
Series II
GB3047.4-86
10.00144.45
111,75156.20 200.65
255.85300.31
5.08×n# is 1,2,3,*-109
Notes in Table 1
Preferred values
8.317.2mm width series plug box basic dimensions (see Figure 6) loU
When necessary, it can be increased by 60mm tower
31±P,
M4 screw
GB3047.4-86
Printed board center line
Making the contact base of the connector
The area of ​​the soft-closed air hole is ≥5
The length should be as long as possible
Plug out of the board installation surface
Figure 6 Basic dimensions of the plug box
Maximum 25 —
Connecting plug wear compensation melting base
The back head is closely connected to the sugar
A soft line
To ensure that the connecting plug is in contact with the base,
The installation method of various cabinets
. Note: ① This standard only stipulates the installation screw holes of the fixing parts specified in Article 3.1. It is allowed to add other installation screw holes on the upper and lower beams. The added screw holes can be metric screw holes or British screw holes, such as British screw holes used for NIM plug-ins. When adding installation screw holes on the upper and lower beams, the screw hole spacing dimension H on the upper and lower crossbeams should be guaranteed. ? s= 1, 2, 3, * 25.
③ The size 8.7±0.1mm is a specific size for the 86-core printed plug socket. When other types of plug sockets are used, this size together with the size 8.2±0.2mm in Article 3.4 can be determined according to needs. However, it should be ensured that after the plug is inserted into the plug box, the plug will float 0.5mm above the plug box track (see Appendix B). The center of the plug socket is aligned with the center line of the printed circuit board. If they do not overlap, the maximum deviation is 3mm. 3.3.1 The slot size and position of the slot on the plug box panel should comply with the provisions of the first part of GB3047.1-82. .8.2 The size of the plug box in the height direction (see Table 4): H
GB 3047.486
The size of the plug box in the depth direction (see Table 5): 7U
120, 180, 240, 300, 360, increase by mm increments 10U
180, 240, (266.7), 305, 360 increase by 60mm increments 240, (266.7) 300, 360. Increase by 60mm increments Note: The dimensions in the numbers are restricted dimensions. 3.8.4 Centerline position of mounting screw hole
Z =8.6 +17.2 (s-1)
3.3.6 Centerline position of connection socket
Y=10.9+17.2 (s-1)Www.bzxZ.net
8.3.6 Centerline position of guide rail groove:
X=15.9 +17.2 (s-1)
Note: when the printed board plug-in shown in Figure 7 is used, X=10.9+17.2 (s-1)8.3.7 The requirements of CAMAC and NIM plug-in boxes are determined by relevant standards. 3.3.8 The recommended value of C is 3~4mn, which is the same as the thickness of the plug-in panel. 3.417.2mm width series plug-in basic dimensions (see Figure 7. Figure 8 and Table 6): 11
—11 (maximum)
GB 304.4---*6
Basic dimensions of printed board plug-in
2. 4±0, 1-
8.5±0.1-
GB 3047.4—86
+1.5±0.2
-8. 5 = 0.1
2'0+e*s
Figure 8 Basic dimensions of cassette plug-in
Note: ① It is allowed to add mounting screws on the upper end of the plug-in panel, but the size between the upper and lower screws must be guaranteed. p92
The small size 8.2±0.2mm is a specific size for 86-core printed plug-in. When other types of plugs are used, this dimension together with the dimension in Note 3 of Item 3,3 is 8.7 ± 0.tmm can be determined as needed, but it should be ensured that after the plug-in is inserted into the plug-in box, the extension piece is 0.5mm above the guide rail surface of the plug-in box.
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