PCal AA Chassis X-end

Ref Channel correspondence.

I/O1		CH1	OFSPD1
I/O2		CH2	RxPD1
I/O3		CH3	TxPD1
I/O4		CH4	ErrMon1

I/O5		CH1	OFSPD2
I/O6		CH2	RxPD2
I/O7		CH3	TxPD2
I/O8		CH4	ErrMon2

I/O9		CH1	EY1_QPDX
I/O10		CH2	EY1_QPDY
I/O11		CH3	EY1_QPD_sum
I/O12		CH4	N/A

I/O13		CH1	EY2_QPDX
I/O14		CH2	EY2_QPDY
I/O15		CH3	EY2_QPD_sum
I/O16		CH4	N/A