Service manual
ALIGNMENT AND TEST PROCEDURES
7-17
Month 2000
Part No. 001-2004-601
Voice Audio To Repeater
1. Set MAC S100 and S101, all Sections OFF
(see Figure 7-10).
Figure 7-10 S100 SETTING
2. Inject a 1 kHz tone from a balanced 600 ohm source,
at the level determined by the type of line used, into
TXA+ and TXA- of J2 located on the back of the
Repeater (see Figure 7-17).
Leased Line/Direct Connect (default)
-12 dBm (194 mV RMS)
Microwave/T1 (optional)
-28 dBm (31 mV RMS)
3. Adjust R243 on the MAC to obtain -6 dBm
(387 mV RMS) measured at J100/J103.
FSK Data Level Adjustment To Repeater
Separate Data Path (4-Wire) Optional Setting.
1. On the MAC, set S100 Sections 1, 4, 5, 8 OFF;
2, 3, 6, 7 ON; S101 Sections 2, 3, 4 OFF; 1 ON
(see Figure 7-11).
2. Inject a 1.2 kHz tone from a balanced 600 ohm
source, at the level determined by the type of line
used, into TXS+ and TXS- of J2 located on the back
of the Repeater (see Figure 7-12).
Leased Line/Direct Connect (default)
-12 dBm (194 mV RMS)
Microwave/T1 (optional)
-28 dBm (31 mV RMS)
3. Adjust R242 on the MAC to obtain -10 dBm (245
mV RMS) measured at J100/J103.
Figure 7-11 S100/S101 SWITCH SETTINGS
Figure 7-12 J2 TERMINAL BLOCK (SECOND-
ARY)
FSK Data Level Adjustment To Repeater
Data over Voice (2-Wire) Default Setting.
1. On the MAC, set S100, all Sections OFF; S101
Sections 2, 3, 4 OFF; 1 ON (see Figure
7-13).
O
N
2
1
8
7
6
5
4
3
O
N
2
1
4
3
R
X
S
-
(
G
N
D
)
R
X
S
-
R
X
S
+
(
A
U
D
I
O
)
R
X
S
+
(
F
S
K
)
R
X
S
-
(
G
N
D
)
TX
S
-
T
X
S
+
(
A
U
D
I
O
)
T
X
S
+
(
F
S
K
)
S
1
0
0
S
1
0
1
F
S
K
T
X
S
+
O
N
2
1
8
7
6
5
4
3
O
N
2
1
4
3
R
X
S
-
(
G
N
D
)
R
X
S
-
R
X
S
+
(
A
U
D
I
O
)
R
X
S
+
(
F
S
K
)
R
X
S
-
(
G
N
D
)
T
X
S
-
T
X
S
+
(
A
U
D
I
O
)
T
X
S
+
(
F
S
K
)
S
1
0
0
S
1
0
1
F
S
K
T
X
S
+
2
1
33
34
J2
TXS+
TXS-
RXS-
RXS+