User's Manual Part 5

OPERATING EQUIPMENT ROI-S05749

2-6

SC IN/OUT (D-Sub

Female 44 pins)

Input/Output Signal

NE2: Network Element

Level: RS-485

DSC (RS-232C): 2 CH

Bit rate: 9600 bps

Level: RS-232C

DSC (V.11): 2 CH

Bit rate: 64 Kbps

Level: V. 1 1

Impedance: 100 ohms

NE (RJ-45): Network Element

Level: 10 Base-T

LCT (USB): Serial interface USB-B type connector with PC

NMS (RJ-45): PNMS

Level: 10 Base-T

Indicators (CTRL)

LED Indication Remarks

MAINT Maintenance mode can be

selected by LCT, PNMT and

PNMS

“The maintenance Mode

“O

N” is selected”.

Actively blinks: In progress of program data download.

Inactively blinks:Protect Mode for CTRL replacement

in ef

fect.

MEMORY Memory Card (MMC) status. ON: Enable access to Memory Card

OFF: Disable access to Memory Card

Blinks: Accessing Memory Card

IDU IDU Summary alarm. Check ALM LEDs on each module to find the cause

nd/or connect LCT to check the performance condition.

Blinks: CPU or peripheral event occurred.

Interface Signals (CTRL)