Amtelco infinity series - Rear Board Jumpers and Connectors

Installation • 3-3 •
The H.110 Basic Rate ISDN Board
JW2 DSP Firmware Select. Two separate firmware programs are
included in the EAROM, one for the board processor and
one for the DSP. If JW1-2 is installed and downloaded DSP
firmware is present, the factory DSP firmware is executed
after reset. Otherwise, the downloaded firmware is executed
if present. See JW1-1.
JW4 PCIXCAP/M66EN Bypass. When installed, the board will
ignore the state of PCIXCAP and M66EN. This may be
necessary when hot inserting the board into an older
backplane that does not correctly implement these signals.
When not installed, the board uses these signals during hot
insertion to determine if the board can operate in the selected
slot. The jumper is normally not installed.
P3 Diagnostic port. Never install jumpers here
P4 This header is used for programming internal logic and should
never be jumpered.
3.3 Jumpers & Connectors for the Rear Board
J1 Basic Rate ISDN Connections for port 0-15. This connector
is a 68 pin SCSI-3 type connector. It contains two pairs for
each Basic Rate ISDN port or interface on the board. See
Figure 3.
J2 Basic Rate ISDN Connections for ports 16-31. This
connector is a 68 pin SCSI-3 type connector. It contains two
pairs for each Basic Rate ISDN port or interface on the
board. See Figure 3.
SW1-8 These switches terminate the individual BRI ports.
Termination is required if the port is to be used as an NT
(network termination) or if it is the last or only TE (terminal
equipment) on the interface. The switches should be set on