ATL TELECOM USER GUIDE
AM2048A OS/OM
3
COMPLIANCE NOTES AND SAFETY INSTRUCTIONS
1
2.1
EXAMPLE APPLICATIONS
10
2.1.1
Desktop modem to desktop modem, no external timing
10
2.1.2
Desktop modem to desktop modem, with external timing
10
2.1.3
Rack mount modem to desktop modem
11
4.1
CONNECTION OF PROTECTIVE EARTH
15
4.2
POWER ON SEQUENCE
15
4.3
DEFAULT SETTINGS
16
4.4
LOGGING ON
16
4.5
SETTING MASTER/SLAVE MODE
16
4.6
SETTING THE USER INTERFACE
17
4.7
SETTING THE NX64K USER DATA RATE
17
4.8
SELECTING THE CIRCUIT CONFIGURATION
18
4.8.1
Standalone Section
19
4.8.1.1
G.703 to G.703 Transparent Timing
19
4.8.1.2
G.703 to G.703 Internal Timing
20
4.8.1.3
G.703 to X.21/V.35 Internal Timing
21
4.8.1.4
X.21/V.35 DCE to X.21/V.35 DCE
21
4.8.2
Tandem Section – External Timing
22
4.8.2.1
X.21/V.35 DTE-to X.21/V.35 DCE
22
4
I N S T A L L A T I O N
1 5
3
C O N S T R U C T I O N
1 3
2
I N T R O D U C T I O N
9
1
S C O P E
7
2
ATL TELECOM USER GUIDE
AM2048A OS/OM
For the G.703 Port Connection to Unexposed Environments:
The Alarm Port has a safety status of SELV.
The G.703 Digital Network Interface Port has a safety status of SELV.
For the G.703 Port Connection to Exposed Environments:
The Alarm Port has a safety status of earthed SELV.
The G.703 Digital Network Interface Port has a safety status of TNV-1.
The Protective Earth on the rear panel MUST be connected (see Section 4 on Installation).
Definitions:
Exposed Environment
A TELECOMMUNICATIONS NETWORK is considered to be an exposed environment if one or
more conditions for an unexposed environment are not fulfiled.
Unexposed Environment
A TELECOMMUNICATIONS NETWORK is considered to be an unexposed environment if the
following conditions apply to all parts of the network.
a) The possible effect of indirect lightning has been reduced by measures described
in IEC 61312-1.
b) The possibility of having different earth potentials has been reduced by connecting all
equipment within the network to the same equipotential bonding system (see HD 384).
c) The possibility of power cross/contact has been reduced (see HD 384).
d) The possibility of induced transients and voltages has been reduced.
Caution - Laser Product
The Optical Interface is classified as a
CLASS 1 LASER PRODUCT.
Caution – Electrostatic sensitive device
Electro-static discharge (ESD) Warning:
Antistatic precautions should be observed at all times.
If the unit is power fed from the DSL line interface then a functional
earth MUST be connected. (See Section 4 on Installation).
Manufacturers Declaration*
ATL Telecom Limited declares that this product is in conformity with the
essential requirements of the ‘R&TTE directive 1999/5/EC’.
* A copy of the Declaration of Conformity is available upon request from ATL Telecom Ltd.
