BusinessPhone Communication Platform 4.0
Installation Instruction ASB 150 02

## Boards For ASB 150 02

### Handling of PBAs

Service personnel shall always connect themselves to ground to prevent damage caused by static discharges.

Note

Boards with Electrostatic Sensitive Devices (ESD) are marked with a sign.
In the interest of quality and reliability of the system boards, always handle static sensitive boards with special care. Always use a wrist strap connected to a low resistance ground e.g. provided on the cabinet:
Use portable equipment LYA 30101 as a protection against electrostatic discharges. For safety reasons the wrist strap should be equipped with a 1 MOhm series resistor.

Some of the benefits of ESD protection are:

- less failures/service calls
- lower maintenance costs
- higher customer satisfaction

### Board position numbering

The values in brackets define the cabinet numbering for Integrated Cordless as used by the Cordless System Manager.

Board position numbering for:

- the basic unit: 0,1 --- 8.
- first additional unit: 16,17 --- 24.
- last additional unit: 48,49 --- 56.

### Placing of boards

The cabinets BDV 113 08, BDV 101 01 and BDV 101 05 are prepared for arbitrary furnishing of boards belonging to the ASB15002 system but certain constraints should be considered for best performance results. The cabinet BDV BS 101 0x supports only five slots and is configured similar to the BDV 113 08. For the cabinet BDV 113 08 cabinet 0 is to be equipped as follows:

Pos. 0 |  | Reserved for CPU-D_

Pos. 1-8 |  | Available for arbitrary PBA configuration like IC-CU_, IC-LU, ELU-_,MFU, VMU-D, AUX_, BTU-_ and REG.

Pos. 8 |  | VMU-HD thermal considerations regarding the hard disk require this position. If any other position has to be chosen then the board in the next right hand position should be one of the following: AUX_, REG, BTU-D or free space.

Note

It is advisable to use a maximum of two BTU-Ds in one PBX. Not applicable if used as REG board.

Arbitrary board configuration on positions 1, 2 - 56. The Integrated Cordless system should be installed within one cabinet furnished with a PUB5 or higher. This leaves room for a maximum of 7 IC-LUs. RASC cannot detect IC-LU boards installed in the system so it is advisable to locate these boards to the right of the IC-CU_ board. IC-LU boards can be removed and replaced without needing to shut down the exchange. All boards except the CPU-D_ can be exchanged under power provided that the board is replaced by a board of the same type and configuration. New boards e.g. to upgrade the system, can be installed under power in a free slot of the cabinet.

#### Sub-equipped boards

Install sub-equipped boards in the last position after the standard boards to enable easy upgrading without having to re-number trunks and extensions.

When installing boards with ground brackets in a cabinet of an earlier release not prepared for them, take out the screws of the ground brackets at the top and bottom of the boards. Then bend the bracket at the top slightly away from the cabinet to allow a clearance for the front cover to slip on correctly.

#### EMC

The ferrites, with the ERICSSON ordering number STF 82 601, should be situated close to the slot where the cables are led out of the cabinet. Two turns through the ferrite core are sufficient to comply with EN 55022 Class B and to avoid disturbances in non-industrial, residential (home) usage.

### Connection of CM-boards

Connect the correct type of call metering board, according to the figure below, on BTU-A board ROF 157 5110/_ or ROF 157 5127/_ and in the same fashion on the BTU-C board ROF 157 5111/_. The BTU-C cannot be equipped with a CM50 board as the flat ribbon cable cannot be connected and CM12/16 (ROA 219 5135/1).

The following boards are available CM50 ROA 219 5064/1, with flat ribbon cable and CM12/16 ROA 219 5135/1 or ROA 219 5062/1 without cable.

For exact positioning of CM-boards, make use of all pin-connectors.

Note

When installing a CM50-board connect the cable before mounting the CM50-board. The BTU-A board must also be connected to earth.

#### More Information

BTU-A (ROF 157 5110/_) and BTU-A2 (ROF 157 5120/_)

Power failure circuit (PFC)

BTU-C (ROF 157 5111/_)

BTU-B (ROF 157 5121/_)

BTU-B2 (ROF 157 5121/_)

BTU-D (ROF 157 5112/1) and REG (ROF 157 5112/2)

BTU-E (ROF 157 5113/_)

CPU-D_ (ROF 157 5118/_) and AUX_ (ROF1575 119/_)

CPU-D4 (ROF 157 5124/_)

ELU-C (ROF 157 5115/1)

ELU-A and ELU-D_

Power supervision on ELU-A

MFU (ROF 157 5132/_)

VMU-HD (ROF 157 5126/_)

VMU-D (ROF 157 5117/1)

Revision: A © Ericsson Enterprise 2003