Specifications
Configuratio
n
5
0003097 Revision A 1
5
two installed below. These standoffs extend beyond the fiber cable connectors to protect 
them from damage.
•  Redundant Control Backplane: The backplane is designed to accommodate two Main 
Controller (MC) cards, two CSM cards, the CRC card, the Mass Storage Expander (MSX) 
card, two redundant power modules, and a landing point for three pairs of FIM Carrier 
card ribbon cable connectors. The backplane distributes redundant power to the FIM 
carriers, the MSX card, the CRC card, and the control panel.
•  Rear Panel: The following switches and connectors are provided on the rear panel of the 
cabinet:
- Two power on/off switches (one for each power supply)
- Two small red sliding-type switches for selecting the input power source. The switch 
can be set to either 115 Vac, 60 Hz or 230 Vac, 50 Hz.
- Two 3-conductor male receptacles to connect two independent AC power sources or 
2 DC terminal blocks
- Two 3-conductor female power receptacles
CAUTION: Do not connect any devices to the female power receptacles.
- Tx and Rx connectors on each Fiber Interface Module
- An RS-232 printer port for call accounting output
- Two RS-232 Maintenance Terminal ports; one for each plane
- A remote alarms port.
Non-redundant SX-2000 LIGHT System
The Non-redundant SX-2000 LIGHT system supports applications that require up to 1500 lines. 
The non-redundant main control cabinet can support up to 11 expanded 
peripheral nodes or 
five 
DSU nodes. The system is available in an 18-inch cabinet, which allows space for future 
planned expansion.
Note: The 9-inch non-redundant cabinet has been discontinued; however, the cabinet is still supported.
The non-redundant control node consists of the following components:
•  Control Cards: The control node contains a 
Main Controller card and a Control Resource 
card
. The Main Controller card is located in slot 1 of Shelf 1, and the Control Resource 
card is located in slot 2 of Shelf 1.
•  Cabinet Frame: The 18-inch non-redundant control cabinet is separated into three 
shelves. Shelf 1 and Shelf 2 are located at the front of the cabinet and hold the redundant 
power modules and Control cards; Shelf 3, at the back of the cabinet, holds the FIMs.
•  Power supply: The 200 Watt AC or 150 Watt DC power supply provides power for the 
cabinet. The power supply fan cools the cabinet.
•  Hard Disk Drive: The 3.5 inch wide x 1 inch high SCSI hard disk is mounted on the front 
panel at the top of the cabinet. The hard disk drive is visible through an opening in the 
front cover.
• Remote Storage Device (RSD) drive: An ISO-standard, 3.5 inch, magneto-optical disk 
drive is mounted just below the hard disk drive on the front of the cabinet.










