Dual-Channel Escon To Vme Card And Interface Panel; Dual-Channel Escon To Vme Card - Sun Microsystems StorEdge A7000 Service Manual

3.5 Dual-Channel ESCON to VME Card and
Interface Panel
Each dual-channel ESCON to VME interface card (part number 501-5075-xx)
connects to an interface panel inside the I/O bay cabinet. The card has five front
panel connectors, one jumper, and one address switch. The interface panel has
connectors, online and fiber optic switches, and status LEDs.
3.5.1

Dual-Channel ESCON to VME Card

This section describes the connectors, LED indicators, hex display, switches, and
jumpers of the dual-channel ESCON to VME card.
3.5.1.1 Connectors
Rear of the card—
P1—VMEbus; mates with backplane connector J1
P2—VME/local bus; mates with backplane connector J2
P3—local bus; mates with backplane connector J3
Front of the card—
Diagnostic port—serial port interface for onboard code debugging
Channel 0/Channel 1 connector—connects the ESCON fiber optic cable to the
transceiver
Control/Status connector—port that connects by ribbon cable to the transition
panel
3-30 Sun StorEdge A7000 Service Manual • August 1999
shows the connectors at the rear of the card:
FIGURE 3-16
shows the connectors at the front of the card:
FIGURE 3-17