Docstoc

COM

Document Sample
COM Powered By Docstoc
					                                                                            Annexure ‘A’
       The Crew Management System (CMS) has been designed to be deployed at integrated
lobbies. The system is based on a central database that will be accessed by all the lobbies
through a communication network.

CMS hardware and its placement

       The following hardware will be placed in the lobbies for the system. The yardstick being
followed for provision of the equipment is placed in the annexure:

      Touch screen type free-standing kiosks with biometric identification system for crew
       sign on and sign off, to be placed in the lobby.

      Thin clients / PCs with printers for crew controllers / TNCs, to be placed in the lobby.

      Thin clients / PCs with printers for lobby supervisors, to be placed in the lobby
       supervisor’s room.

      Routers / LAN extenders for connectivity, to be placed in the lobby itself, primarily for
       keeping a check on performance of routers and other equipment.

Site preparation

      The CMS will be rolled out in the various crew lobbies progressively. The following
advance preparation of the sites is essential to ensure that the equipment can be installed and
commissioned with a minimum of delay:

Data communication and networking

      Depending on the distance from the nearest FOIS point of presence, each lobby will be
connected to the network as follows:

      Distance greater than 3 Km: Leased line connected to router placed in lobby. Router
       connected to the lobby’s LAN switch.

      Distance less than 3 Km but more than 80 m: LAN extender placed in lobby connected
       through a copper pair to the FOIS point of presence. LAN extender connected to the
       LAN switch placed in lobby.

      Distance less than 80 m: Direct UTP cable connected to the switch placed in the lobby.

       In addition, suitable structured LAN cabling should be made available in the lobby and
supervisor’s room, to connect with the LAN switch to be placed in the lobby. It must be
ensured that the cable is placed in PVC conduits (caping / casing type), firmly fastened to the
walls at waist level. The LAN cable should be placed at least 0.5 m away from electrical
cables.

       The LAN outlets should be placed at waist level, not more than 2 m away from the
location of the connected equipment, in order to enable standard patch cords to be used.

D:\Docstoc\Working\pdf\24777db5-3d2f-4703-add5-60c59d4e431e.doc    Page 1 of 2
                                                                                    Annexure ‘A’
Power supply

       Each kiosk / thin client / PC will be provided with its individual UPS. Each printer will be
connected to a UPS as well. Electrical outlets (plug points, dual 5A / 15A) should be made
available for each such UPS, not more than 1 meter away from the planned location of the
equipment. 20% spare points should be provided at appropriate locations.

       It is to be noted that the datacom equipment will also be provided with suitable UPS
equipment. Since interruptions in power supply to the router causes resetting and disruption of
the router, several hours backup should be provided for the router, and batteries should be
maintained adequately.

      Approximate electrical load of the computer equipment is given in the annexure.
Approximate electrical load (excluding air-conditioning) in the lobby will be less than 6.3 KVA in
the worst case (typically less than 5 KVA). In the supervisor’s room it will be less than 3 KVA in
the worst case (typically less than 1.2 KVA).

       Whereas separate earth is not needed, building earth must be maintained to provide
neutral – earth voltage of less than 1 V. In lightning-prone areas, lightning arrestors must be
provided to prevent damage to the equipment.

       Alternate power supply must be made available. In case of power failure, switch-over to
the alternate power supply must be ensured within 15 minutes.

Space and furniture

      Sufficient space should be made available for installing the touch screen kiosks. 3’x3’x5’
space is to be earmarked per kiosk with a very low partition for safety of the equipment.

        Standard computer tables 3’ x 3’ with space for monitor, processor, keyboard, and
printer, and chairs with castors should be made available for the equipment provided to the
crew controllers / TNCs and the lobby supervisors. Each terminal / thin client should be placed
on a separate table.

       Approximate space requirement of 4’x5’ should be made available for placement of
Datacom equipments (like racks, UPS, modem, router etc.) at routers locations in those
lobbies that are to be connected by WAN. Similarly, space of 3’x2’ dimension is required for
LAN extenders or LAN locations.

Environment control

      1.5 T air-conditioning unit is required in the lobby, primarily to keep the environment dry
and dust-free. This is especially important in those locations where routers are to be installed.

       Doors and windows should be properly maintained to prevent ingress of dust.

      Proper lighting should be ensured at the touch screen kiosks and crew controllers’
terminals, comparable to that needed in indoor work areas (approximately 500 lux).


D:\Docstoc\Working\pdf\24777db5-3d2f-4703-add5-60c59d4e431e.doc    Page 2 of 2

				
DOCUMENT INFO
Shared By:
Categories:
Tags:
Stats:
views:8
posted:3/5/2010
language:English
pages:2