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NOTE: Only one loopback activation (Local Fiber Loopback or Remote Fiber Loopback) can be
configured at the same time.
SW8 (16): T1/E1 Line Codes "B8ZS / AMI"
When this DIP-switch is in the "B8ZS" position (default), the 4xT1/E1 MUX module is configured for
B8ZS (T1) or HDB3 (E1) line coding. When the DIP-switch is in the "AMI" position, the 4xT1/E1 MUX
module is configured for AMI line coding.
Wall and Rack Mounting
The 2-Module chassis can be wall/rack mounted by attaching the optional wall/rack mount brackets
(8249-0). A 19" Rack Mount Shelf (8260-0) is available to install three 2-Module chassis.
The operating temperature of this equipment is 0 to 50 degrees C or -40 to 60 degrees C depending on
the model number. If installed in a closed or multi-unit rack assembly, the operating ambient temperature
of the rack must not exceed the maximum rated temperature for the chassis used.
Installation of the equipment should be such that the air flow in the front and back of the unit is not
compromised or restricted.
Installing this equipment into a rack in such a way as to make it unstable may cause injury or death.
Always make sure that the rack you are installing this equipment into is properly secured, stable, balanced
and designed to carry the weight and weight distribution of this equipment.
Never use this equipment to carry any weight except its own. Never use it as a shelf to support the
weight of other equipment.
Apply AC Power
Power source should be available within 5 ft. of the chassis and installed per the National Electrical
Code, ANSI/NFPA-70.
This equipment requires 100-240VAC, 0.5Amp, 50/60Hz. Appropriate overloading protection should be
provided on all AC power source outlets utilized.
The standard operating temperature of this equipment is 0 to 50 degrees C. If installed in a closed or
multi-unit rack assembly, the operating ambient temperature of the rack must not exceed the maximum
rated 50 degrees C temperature. For wide temperature models, the operating temperature must not
exceed 60 degrees C.
Installation of the equipment should be such that the air flow in the front and back of the unit is not
compromised or restricted.
Installing this equipment into a rack in such a way as to make it unstable may cause injury or death.
Always make sure that the rack you are installing this equipment into is properly secured, stable, balanced
and designed to carry the weight and weight distribution of this equipment.
Never use this equipment to carry any weight except its own. Never use it as a shelf to support the
weight of other equipment.
Attach the AC power cords (provided for each Power Supply) to the back of each Power Supply and plug
into the AC outlets. The fans should immediately begin to run and any installed modules will illuminate
the power LEDs.
Figure 14: Rear View with Power Cord
Page 7
Apply DC Power
Power source should be available within 5 ft. of the chassis. The over current protection for the connection
with centralized DC shall be provided in the building installation and shall be a UL listed breaker rated
at 15 Amps, and installed per the National Electrical Code, ANSI/NFPA-70.
This equipment requires 18-60VDC/2.0A rated power. Appropriate overloading protection should be
provided on the DC power source outlets utilized.
Appropriate overloading protection should be provided on all DC power source outlets utilized.
WARNING: Only a DC power source that complies with
safety extra low voltage (SELV) requirements can be
connected to the DC-input power supply.
WARNING REGARDING EARTHING GROUND:
o
This equipment shall be connected to the DC supply
system earthing electrode conductor or to a bonding
jumper from an earthing terminal bar or bus to which the
DC supply system earthing electrode is connected.
o
This equipment shall be located in the same immediate
area (such as adjacent cabinets) as any other equipment
that has a connection between the earthed conductor of
the same DC supply circuit and the earthing conductor,
and also the point of earthing of the DC system. The DC
system shall not be earthed elsewhere.
o
The DC supply source is to be located within the same
premises as this equipment.
o
There shall be no switching or disconnecting devices in
the earthed circuit conductor between the DC source and
the earthing electrode conductor.
The standard operating temperature of this equipment is 0 to 50 degrees C. If installed in a closed or
multi-unit rack assembly, the operating ambient temperature of the rack must not exceed the maximum
rated 50 degrees C temperature. For wide temperature models, the operating temperature must not
exceed 60 degrees C.
Installation of the equipment should be such that the air flow in the front and back of the unit is not
compromised or restricted.
Installing this equipment into a rack in such a way as to make it unstable may cause injury or death.
Always make sure that the rack you are installing this equipment into is properly secured, stable, balanced
and designed to carry the weight and weight distribution of this equipment.
Never use this equipment to carry any weight except its own. Never use it as a shelf to support the
weight of other equipment.
Locate the DC circuit breaker and switch the circuit breaker to the OFF position.
Prepare a power cable using a three conductor insulated wire (not supplied) with a 14 AWG gauge. Cut
the power cable to the length required.
Strip approximately 3/8 of an inch of insulation from the power cable wires.
Connect the power cables to the Chassis by fastening the stripped ends to the DC power connector.
WARNING: Note the wire colors used in making the positive, negative and ground connections. Use
the same color assignment for the connection at the circuit breaker.
Connect the power wires to the circuit breaker and switch the circuit breaker ON.
immediately begin to run and any installed modules will illuminate the power LEDs.
The fans should
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