Lh8 Card - Aastra AXD Installation And Maintenance Manual

4.14.10 LH8 card

4.14.10.1Description
The LH8 card is used to connect 8 analogue hotel terminals to an iPBX.
The LH8 card has the same features as the LA8 card, plus an extra feature that lights up
an LED on sets if messages have been left (for hotel configuration).
4.14.10.2Functional description
The LH8 card has the same features as the LA8 card (see Section4.14.4.2), plus an extra
feature that lights up an LED to inform the user connected that a message has been left
(example of use: hotel customer reception).
The LED signal command is sent to the central unit (UCV card), which activates a high
voltage current generator built into the card providing the power supply (105 V DC)
required for the operation of the lamps on hotel sets.
4.14.10.3Physical description (see Figure 4.58 )
The LH8 card has the same physical features as the LA8 card (see section 4.14.4.3).
4.14.10.4Installation and wiring
The LH8 card cannot be hot-plugged in an operational iPBX. The iPBX must be powered
off before inserting the card. An LH8 card cannot be plugged into AXD and AXL
expansion cabinets either.
The LH8 card has the same installation and wiring details as those of the LA8 card
(see Section4.14.4.5).
The minimum diameter of the cables has to be 26AWG (0.4mm).
AMT/PTD/PBX/0058/4/6/EN
Page 278 01/2011
Installation and Maintenance Manual - Aastra 5000
Description des sous-ensembles