Samsung OfficeServ 7400 Installation Manual Page 28

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CHAPTER 2. Hardware of OfficeServ 7400
2-8
© SAMSUNG Electronics Co., Ltd.
Table 2.5 Ports of MP40 (Continued)
Ports, LEDs Functions
RUN LED Status of MP40 operation
- Off: No-power
- On (Green): On Booting
- Blink (Green): Normal Operation of Program
The blink cycle is 500 ms while running S/W
LAN LED Status of LAN operation
- Off: No-power and no-connection of LAN port
- On: The color of the LED shows the LAN transmission speed and connection
speed.
On (Green): Good connection + Operation at 100 Mbps
- Blink (Green): Good connection + Operation at 10 Mbps
MC LED Memory Card Access Status
- Off: No- Memory Card
- On: The color of the LED shows the mounting status and the normal
operation status after access.
On (Green): Mounted + Normal Operation
On (Red): Non-mounted or Mounted + Abnormal Operation
- Blink (Green): Memory Card is mounted and in access mode.
MDM LED The mounting status and the operation status of the MODEM
- Off: No-MODEM
- On (Green): MODEM mounted
- Blink (Green): On transmitting data
2.3.1.2 LP40 (Sub-Control Section Module)
LP40 is the minor control module to controls overall functions of OfficeServ 7400 and is
mounted on the slot 0 in the basic and expansion chassis. LP40 manages subscriber cards
and terminals under the control of the main control module, MP40, and transfers various
event signals generated in the subscriber cards and terminals to MP 40.
3 optional modules are mounted on the LP40 module. It is available to mount optional
modules selectively according to a function. For the functions of the optional modules,
there are DTMF, R2, CID, Conference and MISC.
Main Functions
The LP40 module provides the following functions:
y Providing LAN Interfaces (Testing Port)
y Providing testing ports for Universal Asynchronous Receiver and Transmitter (UART)
y Conference, caller information, multi-frequency detecting and door phone control
y External Music On Hold (MOH) and loud/common bell
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