BusinessPhone Communication Platform 5.1

## Installation Instruction BP 128i

General
Supplementary documents
Tool
Declaration of Conformity
How to open the cabinet
Installation
Mounting of the cabinet
One BDVBS 101 06 cabinet
Two BDVBS 101 06 cabinets
Safety and EMC
Safety statement for line connection
EMC
Access to the boards
Board positioning
Mounting the boards
Cooling Equipment
Backplane
Patch panel
Recommeded order for RJ-45 plug in(s):
Power Supply Unit (PSU) BMLBS 101 02/_
Replacement of the power supply unit

## General

The exchange cabinet is designed to be furnished with Printed Board Assemblies (hereafter= boards or PBAs) belonging to Ericsson’s PBX-system ASB 150 02.

The cabinet is specially designed to fit into a 19 inch rack. System functions, desired by the customer, are realised by means of appropriate boards and system programming.

The ASB 150 02 system can be expanded to a maximum of two exchange cabinets of type BDVBS 101 06. The PBX is powered by a switched mode power supply (SMPS) that is available for two voltage versions.

After installation the PBX shall be made operational in accordance with the stipulations that apply for system ASB 150 02. See document Start Of Operation (1537‑ASB 150 02 Uen).

Due to the limited load of the cabinet’s power supply units, the definitive board configuration in a cabinet must be in accordance with the prerequisites mentioned in document Installation Instructions ASB 150 02 (1531‑ASB 150 02 Uen).

### Supplementary documents

- Installation Instructions ASB 150 02 (1531‑ASB 150 02 Uen) for boards, cables and auxiliary equipment
- Installation Instruction (1531‑BML BS 101 01 Uen) for the power supply

### Tool

In addition to customary installation tools, the following is recommended:

- Board extractor for PBAs (handle LTD 117 02 and bottom LTD 117 12)

## Declaration of Conformity

## How to open the cabinet

Unpack the exchange cabinet. Check that everything has been received according to the delivery note and that nothing has been damaged during the transport.

The front panel of the cabinet is fixed with a swivel mechanism on the right side. To unlock the front panel pull gently on the left side.

It will open and swivel to the right side.

Figure 1: BDVBS 101 06 Front view

The following figure shows the operation part of the exchange:

Patch panel containing:

1 |  | 72 empty RJ45 slots for: a/b connectors 2B + D connectors Ethernet/Base stations/30B + D The patch panel is used as an interface between the ASB 15002 cabinet and a structured cabling used in a 19-inch rack. |
2 |  | Molex connector for alarm (polarity independent input) |
3 |  | 3 x V.24 interface (9 pin socket male) for the following applications: O&M, CIL, CTI |
4 |  | Music input (3.5 mm mono jack) |
5 |  | Power control LED |
6 |  | ON/OFF Power switch |

Figure 2: BDVBS 101 06 Rear view

1 |  | Mains connector |
2 |  | The cooling equipment is mounted inside the removable metal sheet |
3 |  | Connector to protective earth |

## Installation

The PBX can be delivered as a customer-configured unit or the add-in boards can be delivered separately. The cabinet is always equipped with a power supply, suitable for the local mains. Please check the label stating the permitted mains voltage.

For customer configurations which require more than five board positions, it is possible to connect a second cabinet, to expand the number of board positions to a maximum of ten.

The cabinet(s) can only be mounted in a 19-inch rack. (It is not possible to mount the cabinet on an indoor wall).

In order to install the cabinet in a 19-inch rack, the following free space needs to be considered:

Overall dimensions of the cabinet:

- 124,5 x 482,5 x 396 (H x W x D in mm)

Figure 3: 19-inch rack with two separate cabinets

1 |  | Cabinet 1 |
2 |  | Optional Cabinet 2 |
3 |  | Borehole to fix the cabinet in the 19-inch rack |

Prerequisites:

The following ambient conditions apply:

- The air shall be free from dust and smoke
- Environmental conditions according to ETS 300 019 (1-4):
  Temperature shall be between + 5˚C and +40˚C and relative humidity may vary between 15% and 80%
- The PBX shall not be exposed to direct sunlight

A mains outlet must be provided next to the equipment and shall be easily accessible. Connection to earth (refer to Safety and EMC) is necessary for safe operation to discharge lightning strikes.

### Mounting of the cabinet

#### One BDVBS 101 06 cabinet

Connect the power supply of the cabinet to a mains outlet in the 19-inch rack.

Put the cabinet in the rack and fix the exchange on the left and right side with screws in the boreholes (see Figure 3: 19-inch rack with two separate cabinets).

When the cabinet is fixed, the ground of the cabinet (power supply) is connected with the 19-inch rack and with protective earth.

#### Two BDVBS 101 06 cabinets

The second cabinet needs to be mounted on the top of the first cabinet. Both cabinets are connected with a flat ribbon cable over the backplane.

Note

The connection of the backplanes has to be performed before the cabinets are put into the 19-inch rack. It is not possible to connect them if they are already mounted in the 19-inch rack.

To connect two cabinets with each other, the “Connection Set NTMBS 10141/1” has to be ordered.

The “Connection Set NTMBS 10141/1” involve following parts:

- 2 x shielding gaskets (SXABS 112041/1)
- 1 x flat ribon cable
- Sealing kit

To connect the cabinets, use the following procedure for both cabinets:

Figure 4: Bottom plate and topplate of the cabinet

1. Unscrew the metal sheet (1) (at the rear side)
2. Remove the metal sheet (1) from the cabinet.
3. Remove the break-off piece (2) from each cabinet (from the bottom plate of the cabinet 2 and from the top plate of the cabinet 1).

|  | Warning: Be careful when removing the break-off piece(s), as sharp edges could remain. This could cause injury when inserting the schielding gaskets. |

1. Now insert the shielding gaskets (A) (part of the “Connection Set NTMBS 10141/1”) in the holes (2) as shown below.
2. Interconnect the backplanes of the adjusted cabinets by using the flat ribbon cable (591 685/2). Lead the cable through the holes (2) (see Figure 4: Bottom plate and topplate of the cabinet or Figure 6: Interconnection of backplanes below) in the cabinet bottomplates and connect it to the relevant connector in the backplane.

Figure 5: Shielding gaskets

1. Screw the metal sheet on and put both cabinets in the 19-inch rack.

Note

The connector is keyed.

Figure 6: Interconnection of backplanes

### Safety and EMC

To fulfill electrical safety requirements IEC 950 and EN 60950, the exchange must be connected to protective earth via a flexible wire with a cross sectional area of at least 6 mm2.

(The protective earth can only be connected at the back of BusinessPhone 128i or on the 19-inch rack itself).

Local requirements shall be adhered to.

The electrical connection must be carried out by authorised personnel.

The 19-inch rack is connected to ground and every component which is integrated in it, is automatically connected to ground by fixing the screws.

|  | Warning: If the earth is not connected a possible strike of lightning might cause a fire ! The wrist strap must have a 1MOhm series protection resistor to comply to the safety standards. If this resistor is missing, it may be lethal to touch live wires. |

#### Safety statement for line connection

All line interfaces in the PBX are protected in accordance with K.21 (voltage transients up to 1.5 kV).

BTU-A, BTU-A2, BTU-B2, BTU-C, BTU-D, BTU-E and MFU work with interface TNV.

All other boards and the V.24 port work with interface SELV.

#### EMC

|  | Warning: This is a a Class A product. In a domestic environment this product may cause radio interferences in which case the user may be required to take adequate measures. |

### Access to the boards

Figure 7: Access to the boards

### Board positioning

Refer to document Installation Instructions ASB 150 02 (1531‑ASB 150 02 Uen).

Note

The ELU-C board is not supported by the cabinet.

### Mounting the boards

The cabinet is adapted for boards fitted with brackets containing screws. Only boards equipped with these brackets must be installed. These screws must always be fastened to ensure a proper ground connection.

|  | Warning: Make sure that a sound ground connection to the exchange has been established. Otherwise this can be hazardous in case of lightning. Use a grounding wrist strap when handling PBAs sensitive to electrostatic discharges. |

### Cooling Equipment

The cooling equipment (fan) is used to cool the power supply unit and the boards inside the cabinet. The fan is fixed with screws on the rear of the cabinet. The air will circulate through the cabinet, so that the whole cabinet is cooled.

If cooling of the cabinet cannot be provided due to a failure of a fan, the system will be automatically shut down. Fan failure initiates an alarm on the CPU_D4. The software trigger a notification action and will indicate the alarm by a LED on the front panel.

An automatic shutdown will be performed after 5 minutes, so that no system damage due to increased temperature is possible.

In case of a failure of the fan, use the following procedure to exchange the fan to a new one.

Figure 8: Cooling equipment for the cabinet

1. Unscrew the metal sheet (at the rear side)
2. Unscrew the fan from the metal sheet
3. Unplug the fan’s power feeding from the connector (1)
4. Replace the fan with a new one
5. Fix it with the screws on the metal sheet
6. Fix the metal sheet with the screws on the cabinet

### Backplane

The backplane is used to provide information data through the line interfaces. The backplane offers 5 connectors for the PBAs. It is mounted and fixed with screws inside the cabinet.

Figure 9: Backplane

Replacing of the backplane

1. Unscrew the metal sheet (at the rear side)
2. Unplug the power feeding for the backplane
3. Unscrew the second metal sheet

1. Put the metal sheet (A) outside the cabinet and unscrew the backplane from the metal sheet (see Figure 9: Backplane)
2. Replace the backplane with a new one
3. Install the new backplane in the reverse manner

### Patch panel

The patch panel is integrated in the front panel of the cabinet and acts as a MDF (Main Distributor Frame) for the exchange.

#### Recommeded order for RJ-45 plug in(s):

line 1. & 2. |  | Extension(s) (ELU_) |
line 3. |  | Base station and Ethernet |
line 4. |  | Trunk(s) (BTU_) |

The RJ-45 plug in(s), are put from the Ind.1 (on the right side of the corner) to the Ind. n (on the left side). The table below the picture gives information, for which line the RJ-45 plug in(s) are used.

The patch cables which connect the cabinet with the main patch panel of the 19-inch rack should have the appropriate length, so that the front panel can always be opened completely, without disconnecting the cables. (Preferably they should be lead on the right side of the rack).

Each specific line interface (MFU, ELU-D, BTU-A,...) is connected through special cables to the panel (with RJ45 plug in). The plug-in(s) are put through the break-off piece(s) and fixed (see Figure 7: Access to the boards).

|  | Warning: Be careful when removing the break-off piece(s), as sharp edges could remain. This could cause injury when inserting the RJ-45 plug in. |

The different MDF cables, which are used to connect the line interfaces, are described in the document Installation Instructions ASB 150 02 (1531_15002‑ASB 150 02 Uen).

## Power Supply Unit (PSU) BMLBS 101 02/_

The AC/DC switch mode power supply is available for two mains voltages. Please check whether the label states the proper mains voltage as required.

Each cabinet is equipped with a dedicated power supply.

The power switch and a visual control for the power on mode is on the patch panel and is also connected to the backplane of the cabinet.

The following versions are available:

- BML BS 101 02/6
  PSU 230V
- BML BS 101 02/7
  PSU 115V

The PSUs delivers 30 W on the PBA supply voltages and 101 W on the 48 V supply voltage.

The following minimum input and maximum output voltages are available in the exchange:

Backplane output: | + 5V |
- 12V to + 12V |
- 48V |

The ground of the power supply is connected with protective earth (in the back).

|  | Warning: The power switch does not disconnect from mains. The mains cord must be unplugged to disconnect the mains. If the power connection cable (2) from the ON/OFF switch (front panel) is disconneted from the power supply, the backplane is provided with voltage (48V). This could make a short circuit, by changing the board(s). |

The PSU is equipped with a mains fuse rated 250VAC 6,3 A T.

Note

This fuse NGH 258 03/630 can be ordered from Ericsson but is a non-accessible and non-user serviceable part.
Only authorised personnel is allowed to change the fuse. Contact your local Support Centre in this matter.

### Replacement of the power supply unit

On delivery the PSU is already installed in the cabinet. The procedure of how to dismount the unit is described below.

Front view of the power supply:

1. Disconnect the mains chord from the PSU
2. Open the patch panel and unplug the power supply, the cables leading from the front panel
3. Unscrew the transport screws (which are mounted on the left side) from the power supply
4. Push out the PSU from the front side of the cabinet
5. Replace the PSU with a new one
6. Install the PSU in the reverse manner

Revision: B © Ericsson Enterprise 2003