INTRODUCTION:
The Sun T3 and T3+ are very similar arrays, however, they are not the same. The difference
between the two arrays lies mainly (possibly ONLY) in the array controllers. The T3
array has a RAID controller with 256MB cache on-board, while the T3+ array has a controller
with a beefy 1GB on-board cache.

The differences don't stop there, though. The face of the controllers also have telltale
signs which can help you differentiate the arrays by just a cursory glance. While the T3+
has a true optical interface on the back (LC Fibre), the T3 array has a DB9 copper interface
which requires a Media Interface Adapter (Sun part# 370-3989) to plug the fibre cable into.

The other main difference visible from the outside of the array is that the T3 array's serial
port is an RJ-11 (telephone-type jack), while the T3+ array has an RJ-45 (network) jack for
it's serial port. This difference is the reason for the two different sets of instructions
below. The first set of instructions is for the T3+ array and the second set for the T3 array.


HOW TO BUILD A SERIAL CABLE TO CONNECT A T3+ ARRAY TO AN ANNEX TERMINAL SERVER
==============================================================================

V480 End (RJ45)       Annex End (RJ45)
1(RTS)----------------8(CTS)
2(DTR)----------------7(DSR)
3(TxD)----------------5(RxD)
4(REF)NC            NC4(DCD)
5(REF)----------------6(GND)
6(RxD)----------------3(TxD)
7(DSR)----------------2(DTR)
8(CTS)----------------1(RTS)


NOTE#1: Pin 4 is not connected on either end.

NOTE#2: This is an asymmetric cable - one end must plug into the Annex and the other end must plug into the system. If this cable is reversed the devices will not communicate.

Please note that this cable pinout is valid for most Sun systems that use an RJ45 serial port connection (Netra[TM], 
Sun Fire[TM] V480s, Sun Fire[TM] B1600 chassis, etc).




====================================================
HOW TO BUILD A SERIAL CABLE FOR A T3 (not T3+) ARRAY
	Components needed:
	==================

	1) DP9 adapter and assembly

	2) 6 wire phone cable with jack on one side

	3) soldering iron

	Cable pinouts from DB9 adapter to 6 wire cable:
	=======================================
	DB9 adapter Cable
	------------- ---------------
	#2 <--------------------------> Blue

	#3 <--------------------------> Yellow

	N/A <--------------------------> Green

	#5 <--------------------------> White

	N/A <--------------------------> Red

	N/A <--------------------------> Black