ATL Telecom AM2048 User Manual
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ATL TELECOM USER GUIDE
AM2048A
3
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
Desktop modem to desktop modem with split site working
11
2.1.4
Rack mount modem to desktop modem
12
4.1
CONNECTION OF PROTECTIVE EARTH
15
4.2
WARNING - DC POWERING DIRECT FROM EXCHANGE BATTERY 15
4.3
POWER ON SEQUENCE
15
4.4
DEFAULT SETTINGS
16
4.5
LOGGING ON
16
4.6
SETTING MASTER/SLAVE MODE
17
4.7
SETTING THE USER INTERFACE
18
4.8
SETTING THE NX64K USER DATA RATE
18
4.9
SELECTING THE CIRCUIT CONFIGURATION
19
4.9.1
Standalone Section
19
4.9.1.1
G.703 to G.703 Transparent Timing
20
4.9.1.2
G.703 to G.703 Internal Timing
20
4.9.1.3
G.703 to X.21/V.35 Internal Timing
21
4.9.1.4
X.21/V.35 DCE to X.21/V.35 DCE
22
4.9.2
Tandem Section – External Timing
22
4.9.2.1
X.21/V.35 DTE-to X.21/V.35 DCE
22
4.9.2.2
G.703-to X.21/V.35 DCE
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I N S T A L L A T I O N
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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
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1
S C O P E
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2
ATL TELECOM USER GUIDE
AM2048A
PIM - X21 1/298/002 - 15 WAY D-Type connection has a safety status of EARTHED SELV.
PIM - V35 1/298/003 - V35 connection has a safety status of EARTHED SELV.
PIM - ePIM 1/298/004 -
10/100Base T - 8 WAY RJ45 connection has a safety status of UNEARTHED SELV.
USB - 4 WAY Type B connection has a safety status of EARTHED SELV.
Safety Status Classification of non network PORTS.
Mains Input - IEC320 - 85Vrms - 250Vrms 50/60Hz connection has a safety status of PRIMARY
CIRCUIT.
DC Input - 3 PIN MINIFIT - -40Vdc - -75Vdc connection has a safety status of TNV-2.
Management Port Interface - 9 WAY FEMALE D-Type connection has a safety status of
EARTHED SELV.
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 – 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 Limited.