ACCURATE ELECTRONICS 1040120000 Manual - Halaman 5

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ACCURATE ELECTRONICS INC
WWW.ACCURATE.ORG
PO BOX 1654 97075-1654 8687 SW HALL BLVD 97008
FIGURE 4. External Connections Layout.
INPUT PORT 6
RING
INPUT PORT 6
Sx
INPUT PORT 5
Sx
INPUT PORT 5
RING
INPUT PORT 5
TIP
OUTPUT PORT 5
TIP
INPUT PORT 4
Sx
INPUT PORT 4
RING
INPUT PORT 4
TIP
INPUT PORT 3
RING
INPUT PORT 3
TIP
OUTPUT PORT 3
Sx1
INPUT PORT 3
Sx
INPUT PORT 2
Sx
INPUT PORT 2
RING
INPUT PORT 2
TIP
OUTPUT PORT 3
TIP
OUTPUT PORT 3
RING
OUTPUT PORT 2
TIP
INPUT PORT 1
RING
FIGURE 5. Testing Guide Checklist.
NOTE: when a signal is inserted at any input port of the bridge and/or when measurements are made at any output port, be certain that the test
equipment is arranged to accommodate the balanced 600 ohm impedance at these ports.
Test
Test Procedure
Insertion Loss
Connect test oscillator arranged for 1000Hz signal at
0 dBm to any input port (see FIG 5 for pin
assignments). Using transmission measuring set,
measure output level first at output port 1,2,3, or 4 and
then at output port 5 or 6. Do not, however, use output
port with same number and input port to which
oscillator is connected.
Noise
Connect shorting straps between tip and ring
connector pins of all input ports (see Figure 4. For
terminal assignments). Using noise test set, measure
noise level across tip and ring connector pins of
output port 1,2,3 or 4 and also across tip and ring
connector pins of output port 5 or 6.
This document contains proprietary information and is supplied for identification, maintenance, engineering evaluation or inspection purposes only and shall not be duplicated or disclosed without written
permission of: ACCURATE ELECTRONICS INC By accepting this document the recipient agrees to make every effort to prevent unauthorized use of this information.
GOLD PINS
56
55
TIP
INPUT PORT 6
54
53
RING
OUTPUT PORT 4
52
51
TIP
OUTPUT PORT 4
50
49
Sx1
OUTPUT PORT 4
48
47
46
45
44
43
42
41
40
39
RING
OUTPUT PORT 5
38
37
Sx1
OUTPUT PORT 5
36
35
BATT
-48VDC INPUT
34
33
32
31
30
29
28
27
26
25
Sx1
OUTPUT PORT 6
24
23
22
21
Sx1
OUTPUT PORT 2
20
19
18
17
GND
INPUT PWR
16
15
Sx
INPUT PORT 1
14
13
TIP
OUTPUT PORT 6
12
11
RING
OUTPUT PORT 6
10
9
Sx1
OUTPUT PORT 1
8
7
RING
OUTPUT PORT 2
6
5
TIP
OUTPUT PORT 1
4
3
RING
OUTPUT PORT 1
2
1
TIP
INPUT PORT 1
Normal Result
With CH1 to CH6 RCV and
CH1 to CH6 XMT set to 0
position, output level approx.
same as input.
Noise level less than 18 dBm
for all insertion loss settings of
jumpers.
Practice Section 10401200 Rev A
BEAVERTON OR USA 503.641.0118
If normal conditions are not met, verify:
- Power applied to module.
- Wiring.
- Proper impedance terminations (check for double terminations)
- Jumper CH1 to CH6 RCV and/or jumper CH1 to CH6 XMT in proper positions.
- Input level.
- All input ports shorted as directed.
- Noise test set at proper terminating impedance.
- High therefore environment affecting R.F. test set.
January 2014
FAX 503.646.3903
5