8
B. Analog Input Connector (J1A/J1B)
The Analog Input connector is on the Rear PCI Bracket: JA1/J1B is a Dual 68-Pin Connector
(Table 3). Analog signals connect to the lower-numbered pins with return on the higher-
numbered pins. Here is a summary of the analog input pins on this connector.
J1A/J1B
Pins
J1A Signal
J1B Signal
J1A/J1B
Pins
J1A Signal
J1B Signal
1,2
Tap1_LVAL
Tap3_LVAL
35, 36
STROBE_1
STROBE_3
3, 4
Tap1_FVAL
Tap3_FVAL
37, 38
STROBE_2
STROBE_4
5, 6
Tap1_PXCK
Tap3_PXCK
39, 40
MASTER_CK1
MASTER_CK3
7, 8
GPIN1
GPIN3
41, 42
MASTER_CK2
MASTER_CK4
9
GND
GND
43
GND
GND
10, 11
Analog RS170
Input 1
Analog RS170
Input 3
44, 45
Not used
Not used
12, 13
Not used
Not used
46, 47
Not used
Not used
14, 15
Not used
Not used
48, 49
Not used
Not used
16, 17
Not used
Not used
50, 51
Not used
Not used
18, 19
Not used
Not used
52, 53
Not used
Analog
Composite 4,
S-Video C2
20, 21
Not used
Not used
54, 55
Not used
Analog
Composite 3,
S-Video C1
22, 23
Not used
Not used
56, 57
Not used
Analog
Composite 2,
S-Video Y2
24, 25
Not used
Not used
58, 59
Analog RS170
Input 2
Analog
Composite 1,
S-Video Y1
26
GND
GND
60
GND
GND
27, 28
EXT_TRIG1
EXT_TRIG2
61, 62
GPIN2
GPIN4
29, 30
GPIN5
GPIN6
63, 64
Tap2_LVAL
Tap4_LVAL
31, 32
GPOUT1
GPOUT3
65, 66
Tap2_FVAL
Tap4_FVAL
33, 34
GPOUT2
GPOUT4
67, 68
Tap2_PXCK
Tap4_PXCK
Table 3. Analog Input Connector J1A/J1B
