Lan Connection (Entu) Pcb (Figure 2-6); Specifications; Led Indications - NEC Aspire S Manual

LAN Connection (ENTU) PCB (Figure 2-6)

will not start up. In addition, an ENTU would be required for a WebPro/PCPro LAN connection.
The ENTU PCB provides a LAN connector which is compatible with 100Base-TX and 10Base-T. This PCB
is compatible in LAN applications using 10Mbps and 100Mbps. All ports will automatically identify and
switch 100Base-TX, 10Base-T and Full/Half Duplex.
The VoIP PCB, which is required in order for IP telephones to communicate with non-VoIP Aspire phones,
as well as to place or receive outside calls, must be connected to an external switching hub.
The PCB plugs into the CN6 and CN7 connectors on the CPU, with a maximum of 1 per system. Each PCB
provides an RJ61 port connector. This is used to connect to a LAN terminal or external switching hub.
Depending on the type of LAN terminal, the PCB may not be able to detect the difference between straight
cable and cross-cable automatically. If auto-crossover is not functioning, use straight cable for that terminal
connection.
If PoE (power over ethernet) is to be used to eliminate the separate power adapters, a separate power source
is required. It is recommended that you use a power switch and/or power hub which is IEEE 802.3AF com-
pliant. For example, the PowerDsine 6xxx series of products is unique in the fact that in addition to offering
IEEE 802.3AF support, it also provides for the NEC proprietary detection and, therefore, the ILPA (In Line
Power Adapter) is not required. For systems which require layer 2 switching capability and PoE, the NEC
BlueFire 200/24 switch is recommended. This unit provides layer 2 switch capability in addition to being
able to supply ethernet power to 24 NEC IP terminals. For this unit, power feeding is through the signal pair
(1/2, 3/6) or spare pair (4/5, 7/8).
Refer to Section 6: LAN Connection (page 6-1) for additional information on using PoE on the Aspire.
Specifications
● LAN Family Standard: Complies with 10Base-T and 100Base-TX (IEEE802.3)
● Access Method: CSMA/CD
● Transmission Line/Channel Interface: 10Base-T/100Base-TX = 1 port
● LAN Family Interface (Layer 1):
Transmission Speed: 10Mbps/100Mbps Auto Negotiation
Cable: LAN Category 5 or higher - Straight/Cross cable auto negotiation (auto crossover)

LED Indications

Aspire S Hardware Manual
Section 2: PCB Installation and Startup
An ENTU PCB is required when a VoIP PCB is installed. If the ENTU is not installed, the system
LED Function
LD1 LAN Operation Status
ACT
LD2 LAN Operation Status
LINK
LED Status Operation Status
Green Flashing Communicating Data
Green Off Not Activated
Red On Link Established
Red Off No Link
Section 2: PCB Installation and Startup ◆ 2-15
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