Operating instructions

SW 5250A•SW 3500A•SW 1750A Installation
Operation Manual 2-7
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The diagram below illustrates the signal and return connections. Refer to Figure 2–3,
Items 1 and 2.
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Refer to Figure 2–3, Item 3.
A    
1 SHIELD CHASSIS
2 SHIELD CHASSIS
3 SHIELD CHASSIS
4 SHIELD CHASSIS
5 SHIELD CHASSIS
6 through 9 Not Used Not Used
10 EXT_IN_A
±7.25 Vpeak
DC to 5000 Hz, ≥30 kΩ
11 EXT_IN_B
±7.25 Vpeak
DC to 5000 Hz, ≥30 kΩ
12 EXT_IN_C
±7.25 Vpeak
DC to 5000 Hz, ≥30 kΩ
13 EXT_RETURN
±20 Vpeak
WRT CHASSIS GROUND
14 and 15 Not Used Not Used
Table 2–3 EXT IN Connector Pinout