12778474-002-2 Revision F – March 2004
TSG-3800 User’s Guide 199
CPU, Frame Generator, and Clock Modules
T1/E1 Frame Generator Module with Clock Bypass
Setting Switch Block S3
Switch Block S3, located in the lower left corner of the module (see
Figure 6-11
),
determines the two timing signals that this module generates. Various output
modules use these signals to generate their own outputs. Some modules use
Output 1 and Clock 1, while other modules use Output 2 and Clock 2. For example,
some modules, such as the AMI Output module, can be configured to use either
Output 1 or Output 2, and to use either Clock 1 or Clock 2.
Table 6-19
lists the
output modules available and the output and clock signal each module requires
from the T1/E1 Frame Generator module.
Determine which Output modules are required in your application, then refer to this
table and the following paragraphs to set the S4 switches appropriately.
Table 6-20
summarizes the functions controlled by the S3 block of switches.
Table 6-19. T1/E1 Frame Generator with Clock Bypass Signal Requirements
Module Name
Item Number
Output 1
Output 2
Clock 1
Clock 2
AMI 20-Output
AMI 10-Output
ESF/D4 (10)
23478309-
xxx
-0
23478401-
xxx
-0
23478399-
xxx
-0
Yes
Yes
Yes
Yes
Composite
Clock
23477337-
xxx
-0
No
Yes
No
No
56K Bit
23477342-
xxx
-0
No
Yes
No
No
RS-422
RS-422 8 kHz
23477134-
xxx
-0
Yes
Yes
Yes
No
TTL
TTL 8 kHz
23477134-
xxx
-0
Yes
Yes
Yes
No
G.703/10
Analog Output
23477602-
xxx
-0
23478444-
xxx
-0
No
No
Yes
Yes
(Yes = signal used, No = signal not used)
Table 6-20. Switch Block S3
Rocker
Function
Off
On
1
Selects output 1 signal
E1
T1
2
Selects Composite Clock duty cycle
50/50
63/37
3
Selects output 2 with rocker 4 off
Selects output 2 with rocker 4 on
8 kHz
1.544 MHz
Composite Clock E1
4
Used with rocker 3
5
Not used
6
Not used
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