MACRO CPU Board Hardware Reference Manual
Configuration and Hardware Setup
7
Power Supply Check Jumper:
Remove jumper E4 if you are not bringing a +/-12V to +/-15V supply
into the Compact MACRO Station itself (5V only). If bringing these analog circuit supplies into the
Compact MACRO Station, it is best to have jumper E4 on, so that the servo outputs are disabled if either
of the analog supplies is lost.
MACRO Input Select Jumper:
Because the MACRO CPU board can potentially accept MACRO ring
input from either the RJ-45 electrical input or the fiber input, select which input is used (even if only one
of the ring interface options is present). Jumper E40 must be ON to use the fiber input; it must be OFF to
use the electrical input. (If both interface options A and C are present, either ring output may be used,
regardless of the setting of E40.)
MACRO Signal-Loss Detect Jumper:
Jumper E5 (board revisions –105 and newer only) should
connect pins 1 and 2 so that the MACRO receiver’s (fiber or electrical) loss-of-signal detect is reported
automatically as a byte violation error. Older revisions (-104 and before) of the board could not use the
receiver’s signal-loss detect as a violation error (relying on higher-level detection schemes), and
connecting pins 2 and 3 makes operation of the new revision completely compatible with the old. This is
not recommended.
Board Connections
The connection of Compact MACRO Station to other stations on the MACRO ring is achieved by
connecting the output connector of the Compact MACRO Station to the input connector of the next
station and by connecting the output connector of the previous station to the input connector of the
Compact MACRO Station. There must be a completely connected ring, with all stations powered up, for
any communications to occur on the ring.
Optical Fiber Ring Connection:
The U73 integrated fiber optic transceiver is used for both the optical
fiber input and the optical fiber output connections to the MACRO ring. With the component side of the
board up, and the opening facing you, the input socket is on the right, and the output socket is on the left
(these are marked on the component).
RJ45 Electrical Ring Connection:
The J14 connector is used for the input from the previous station on
the MACRO ring if electrical connection is used, and the J17 connector is used for the output to the next
station on the MACRO ring.
Multiplexer Port:
The J6 26-pin header is used to connect to multiplexer port accessories such as the
Acc-8D Option 7 resolver-to-digital converter board and the Acc-8D Option 9 Yaskawa absolute encoder
interface board. This port can be used alternately to provide eight inputs and eight outputs (non-
multiplexed) at TTL levels.
Backplane UBUS Expansion Port:
The P2 96-pin DIN header is used to connect to expansion port
accessories such as the Acc-9E, 10E, 11E, 12E, and 14E I/O boards, or the Acc-24E2x axis boards,
through an Acc-Ux UBUS backplane board. It can also be used to bring in 5V power, and opti/-
15V power, from a backplane or breakout board, to the entire MACRO Station.
Note:
When interfacing to accessory boards across the UBUS backplane, it is strongly
recommended to use a new revision (-105 or higher) of the MACRO CPU board,
and an Acc-Ux backplane board (not an older Acc-Jx backplane board). The
newer revision MACRO CPU boards have stronger bus driver ICs, but they do not
work well with the termination of the Acc-Jx backplane boards.
Power Terminal Block:
The TB1 4-point terminal block can be used to bring in 5V power, and
opti/-15V power, to the entire MACRO Station. In a UMAC (pack) configuration, the
power is more likely to be brought in through the backplane.
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