Handbook

Axell Wireless Limited
Technical Literature
WMATA CRCS Redundant Antenna System
General Overview
Document Number 60-228701HBK Issue No. 3 Date 28/05/2010 Page 16 of 114
3.3.6. Dual Fiber Optic Unit 60-228703 DC Inlet
The Dual Fiber Optic Unit 60-228703 is a standard module used in three different locations: the Jackson
Graham Building, the Carmen Turner Facility and the Gallery Place Station. The DC supply voltage
available at the Carmen Turner Facility and the Gallery Place Station locations is 24V While the DC supply
at the Jackson Graham Building is 12V so to enable the provision of a standardized unit the Dual Fiber
Optic Unit 60-228703 is configured to operate from both 24V and 12V DC supplies
A Pin 3, 12V, (Red Wire)
B Pin 2, 0V, (Black wire)
C Pin 1, not connected (used for 24V I/P)
D Guide keyway
E Fuse access
3.3.6.1. Free Socket for 60-228703 DC Inlet
A Pin 3, 12V (Red Wire)
B Pin 2, 0V (Black wire)
C
Pin 1, not connected
D
Guide key
E Locking/release lug