Intermec ED40, Руководство по интеграции, Страница: 148 / 155

Appendix D — EA30 Imager
136 ED40 Decode Board Integration Guide
Imager Ribbon Cable Connecting to ED40
The ribbon cable connecting the EA30 imager to the ED40 decode board is a
special y-ribbon cable with 25 contacts on the imager side and the other side split
in to 21 contacts connecting to the decode board and 6 contacts connecting to
the host. This cable is necessary because the ED40 decode board does not supply
current to use the EA30’s lighting system. The 6-contacts connected to the host
provide the power for the imager’s illumination LEDs.
Intermec recommends using a shielded flex cable to contain emission from high
speed clock signals in this cable.
EA30 Y-Ribbon Cable for Connection to ED40 Decode Board and Host
1
2
3
4
5
6
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
19
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
19
20
21
22
23
24
25
18
20
21
18
Bottom view
Top view
Connects to host
(6 contacts on
bottom side)
3.5 mm
0.14 in
6 mm
0.24 in
pin 1
80 mm ±0.15 mm / 3.15 in ±0.006 in
pin 1
Side view
3 mm
0.12 in
Connects to EA30 imager
(25 contacts on
top side)
9 mm
0.35 in
7.8 mm
0.31 in
60°
Shield
50 mm ±0.15 mm
1.97 in ±0.006 in
Connects to ED40
(21 contacts on
bottom side)
4.5 mm
0.18 in
6.6 mm
0.26 in
pin 1
4.7 mm
0.19 in
Shield