12-8
Module I/O Specifications

A4 Modulation Distribution

A4 Modulation Distribution
Use extender card 08920-60141
Power Supplies
Inputs
AFG1 and AFG2 are both sine wave signals with the audio frequency set on the RF
Generator page, the attenuation takes place on the modulation distribution board. To
obtain a signal for measuring AFG2, select TEST MENU, then AF_diags. From the AF
diagssubmenu, select MODULATION DISTRIBUTION INTERNAL TEST,using single
step, stop on test #1. AFG1 will measure at >500 mVrms and > 1.8 Vp-p
+12 V J1(29) 120 mA + Audio Output Drive
+5 V J1(33,34) 12 mA
-12 V J1 (30) 120 mA + Audio Output Drive
GND (Analog) J1(27,28)
GND (Digital) J1(35,36,37)
From Front Panel BNC input
EXT_MOD J1(1)
Input Z 600Ω
Max Input Level 15 Vp
Full Scale Input 1 Vp
From A6 Signal Source/Analyzer
AFG1 J1(11), AFG2 J1(13), AFG_GND J1(12)
Input Z 13.36 kΩ
GND Input Z 46.7 kΩ
Full Scale Input 3.5 Vp
1.3 Vrms