Crest Audio NEXSYS - VERSION 3.0, Software Manual

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Crest Audio Inc. NexSys v. 3.0
4. Bus Server Installation and Connection
4.1 Installing the Bus Server Card
The Bus Server Card (NS-BUS-1) is an 8-bit ISA expansion card which requires installation
in a vacant slot inside the NexSys host computer. If you are unsure how to insert an ISA card
Device inside your computer, please consult a qualified computer technician for assistance.
Otherwise, follow these instructions to ensure a safe and speedy installation.
1. Make sure your computer is switched off and disconnected from the electrical
mains. Be sure to use an anti-static mat or other device to reduce the risk of
component failure due to static discharge.
2. Open the computer case & locate a vacant ISA card slot.
3. Remove the mating Phoenix connector from the Bus Server card. The card was
configured and tested prior to leaving the factory. However, shipping and han-
dling may have caused the rotary address switches to shift so verify that they
are set to F (HI) and 0 (LOW).
Bus Server Card rotary switch locations
Carefully insert the Bus Server card into the slot ensuring that the edge connec-
tor is properly seated and that the Phoenix connector clears the computers rear
panel.
4. Reinstall the outer casing.
5. Affix the NexSys network wire into the mating Phoenix connector and insert it
into the Bus Server card. (See the section Connecting the Bus Server to the
NexSys Bus, below.)
6. Reconnect the AC mains
Connecting the Bus Server to the NexSys Bus
A 3-pin, 5mm removable terminal block (Phoenix Contact 17.5.4.46.5 or equivalent) con-
nector is located on the back of the Bus Server card for connection to the data network. Only
the positive (pin1) and negative (pin2) pins of the connector are used. The third, ground pin
is normally left open. (See Appendix C for a detailed view of Bus Server connections)
Network polarity must be observed when connecting the Bus Server or any other network
device to a NexSys network. If reversed, the network will not operate and NexSys will not
be able to communicate with any network devices.
Software Manual Page 4.1