CoaXPress CXP-12 Host Interface

Applies to Closed3603 Coaxlink Quad CXP-12, 3603-4 Coaxlink Quad CXP-12, 3620 Coaxlink Quad CXP-12 JPEG, 3620-4 Coaxlink Quad CXP-12 JPEG, 3621 Coaxlink Mono CXP-12, 3621-LH Coaxlink Mono CXP-12 LH, 3622 Coaxlink Duo CXP-12, 3622-LH Coaxlink Duo CXP-12 LH, 3623 Coaxlink Quad CXP-12 Value and 3624 Coaxlink Quad CXP-12 DF.

The CoaXPress CXP-12 Host Interface implements for each individual CoaXPress connection:

a high-speed cable receiver
a low-speed cable driver
a power transmitting unit (PTU)
a connector

See also: Camera Connectors

It fulfills the electrical specification of the CoaXPress 2.0 standard. Namely:

The cable receiver requirements for the high-speed connection described in Table 2 of the Annex B of the CoaXPress Standard Version 2.0
The cable driver requirements for the low-speed connection described in Table 3 of the Annex B of the CoaXPress Standard Version 2.0

Cable Driver and Receiver Specification

Parameter Conditions Min. Typ. Max. Unit
High-speed receiver bit rate   1.25   12.50 GT/s
Low-speed driver bit rate 1.25 GT/s up to 6.25 GT/s   20.833   MT/s
10.0 GT/s and 12.5 GT/s   41.666   MT/s
Max. cable length BELDEN 1694 @ 1.25 GT/s 130     m
BELDEN 1694 @ 2.5 GT/s 115     m
BELDEN 1694 @ 3.125 GT/s 100     m
BELDEN 1694 @ 5 GT/s 80     m
BELDEN 1694 @ 6.25 GT/s 70     m
BELDEN 1694 @ 10.0 GT/s 50     m
BELDEN 1694 @12.5GT/s 40     m

PTU - Power transmitting unit specification

Parameter Min. Typ. Max. Unit
DC output voltage 22 24 26 V
Available output power1 172     W
OCP holding current 790     mA
OCP nominal trip current     5 A
Device detection sense resistance   4.7   kΩ

The Power Transmitting Unit provides 24 V DC power, over-current protection (OCP) and PoCXP device detection as specified by the CoaXPress Standard.

NOTE: The above specification applies over the whole operating temperature range of the card.

See also: Refer to Power Over CoaXPress in the Functional Guide