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Radio Controllers
Issue 5 June 1999
3-11
Procedure: Installing Radio Controllers
This procedure provides the technician with the necessary steps to install the RC
circuit pack(s).
1. Unwrap the circuit board from its packing and insert it into the designated
slot.
NOTE:
The RC is a standard port circuit pack that can be located in any
available universal port slot of a millions of instructions per second
(MIPS)- or Reduced Instruction Set Computers (RISC)-based
DEFINITY ECS. All RCs must be located in the same port network
covering contiguous areas to ensure a seamless handoff of active
calls. For background information, please refer to the DEFINITY ECS
Installation document.
BL-Y 16
Y-O 42 SPXT.1
Future Use
SYNC 1 INPUT
O-Y 17 SPXR.1
Future Use
SYNC 1 INPUT
Y-G 43 SPXT.1
Future Use
SYNC 1 OUTPUT
G-Y 18 STXR.1
Future Use
SYNC 1 OUTPUT
Y-BR 44
BR-Y 19
Y-S 45
S-Y 20
V-BL 46
BL-V 21
V-O 47 PORT 1 RECEIVE DATA INPUT 902A Download Cable
O-V 22 GROUND 902A Download Cable
V-G 48 NO CONNECT 902A Download Cable
G-V 23 PORT 1 DATA SET READY INPUT 902A Download Cable
V-BR 49 PORT 1 DATA TERMINAL READY 902A Download Cable
BR-V 24 PORT 1 SEND DATA OUTPUT 902A Download Cable
V-S 50
S-V 25
Table 3-2. TN789 RC Circuit Pack Pin Configuration (continued)