24
CARETAKER PLUS INSTALLATION AND OPERATIONS MANUAL
V. Port(s) do not time out
A. 'Robust' X-on/X-off present.
Some printers, particularly the HP LaserJet, send X-on codes at timed
intervals. Set the 'REVERSE CHANNEL DATA TIMEOUT' feature to Y. See
'CONFIGURATION' section for information on 'REVERSE CHANNEL DATA
TIMEOUT'. Other options are disconnect pin 3 on port O, configure the
printer for normal X-on/X-off, or configure port O to X-on/X-off.
B. Improper wiring
A computer which is powered off is making a port busy. Do not connect this
computer's pin 6 to the unit. Alternately, enable ALLOW TIMEOUT ON
BUSY. See 'CONFIGURATION' section for information on 'ALLOW
TIMEOUT ON BUSY'.
Table 7. LED Error Display
Legend: M = Mode LED D = Data LED B = Busy LED E = Error LED
● = LED on O = LED off ☼ = LED flashing
X = may vary, described below
M D B E 1 2 3 4 5 6 7 8 EXPLANATION
O O O ● ● O O O O O O O Error 1
O O O ● O ● O O O O O O Error 2
O O O ● O O ● O O O O O Error 3
O O O ● O O O ● O O O O Error 4
O O O ● ● O O ● O O O O Error 41
O O O ● O O ● ● O O O O Error 43
O O O ● O O O ● ● O O O Error 45
O O O ● O O O ● O ● O O Error 46
O O O ● O O O ● O O ● O Error 47
O O O
●
O O O
●
O O O
●
Error 48
Error 1 EPROM checksum failure
Error 2 RAM buffer memory failure
Error 3 Static ram failure
Error 4 Non-volatile ram checksum failure
Error 41 Non-volatile ram signature doesn't match EPROM signature
Error 43 Non-volatile ram memory failure
Error 45 Restore to default configuration failure
Error 46 Unable to recognize all ports
Error 47 Number of ports doesn't match number listed in the non-volatile ram
Error 48 Wrong EPROM version
Any error not listed requires that the unit be serviced