ATL Telecom AM100 User Manual
Page 9
ATL User Guide
AM100 M
Modem
3
EXAMPLE APPLICATIONS
The diagrams below illustrate some basic applications.
3.1
DATA LINK WITH NO EXTERNAL TIMING
Figure 1
Either end of the link may be set to ‘master’, with the opposite end set to ‘slave’. The timing
originates from the internal clock of the master and is sent out to the customer’s unit.
3.2
DATA LINK WITH EXTERNAL TIMING
Fugure 2
In this example the master modem accepts timing from the G.703, X.21 or V.35 interface and uses
this to time the link.
Router
Switch
AM100 V35 or X21
DATA
NETWORK
LAN
AM100 G703, X21 or V35
Master
Slave
Twisted Copper
pair
Router
Switch
AM100 V35 or X21
DATA
NETWORK
LAN
AM100 V35 or X21
Master
Slave
Twisted Copper
pair
16
ATL User Guide
AM100 M
Modem
6.3
CONNECTION PIN OUT
6.3.1
X21 USER INTERFACE PIN OUT
Pin 1
Name
I-B
S-B
I-A
GND
C-A
R-A
T-A
External Time-A
T-B
Name
C-B
S-A
R-B
External Time-B
Pin Out
1
10
9
8
7
4
3
2
11
12
13
6
5
14
Pin Out
19
18
17
16
15
20
21
22
23
24
25
9