5-24
October, 1998
GRF 400/1600 Getting Started - 1.4 Update 2
Cabling and Verifying Media Cards
HSSI media card
HSSI media card
A HSSI media card provides two full-duplex interfaces. Figure 5-19 shows a HSSI faceplate.
Figure 5-19. HSSI media card faceplate
Attaching HSSI media cables
The GRF HSSI media card provides two full-duplex attachments and requires a pair of copper
cables/connector ends as described in the HSSI High Speed Serial Interface Design
Specification (March 1990). Figure 5-20 illustrates a HSSI cable connector.
HSSI cables are specified to a length of 15 meters (50 feet). Excess cable lengths should be
bound in a figure-eight pattern. Do not wind excess cable into circular coils.
Figure 5-20. HSSI 50-pin connector end
Do not damage the connector ends
Each connector end has 50 fragile pins. Pins can become bent while making the connection to
the media card if alignment is wrong. If a HSSI link does not work, check both ends of the
cable for bent pins.
Warning:
A connector can build up enough charge to disable the media card.
One way to discharge a cable is to run your finger gently over the tips of the pins, touching pins
and the connector shell at the same time.
Warnung
: Es kann sich genug Ladung in einem Stecker ansammeln, daß die
Datenträgerkarte deaktiviert wird. So wird das Kabel entladen: Fahren Sie mit dem Finger
vorsichtig über die Spitzen der Stifte; berühren Sie dabei gleichzeitig die Stifte und das
Steckergehäuse.
Insert the connector perpendicular to the media card
The EMI shielding fitted inside the connector end can make insertion difficult. Insert the
connector end very nearly perpendicular. Pins can be damaged when the connector is inserted
at too much of an angle. Seat the connector firmly so the spring clips are engaged.
A
B
PWR ON
HSSI
F
A
UL
T
S
TAT
0
S
TAT
1
S
TAT
2
HSSI
4MB
RCV
XMT
ST
A
TUS
RCV
XMT
A
CTIVE
RCV
XMT
ST
A
TUS
RCV
XMT
A
CTIVE
(g0007)
HSSI 50-pin
connector end
