Service manual

Page 2 Installation Instructions: AM-338 / AM-339 RJE Board Set
W1
J3
J2
J1
DTE JUMPER SETTING (DEFAULT)
DCE JUMPER SETTING
W1
W1
PIN-1
AM-339
OSCILLATOR JUMPER
DO NOT REMOVE
W1
J1
FACTORY PRESET
DO NOT RECONFIGURE
OSCILLATOR JUMPER
DO NOT REMOVE
PIN-1
AM-338
TO AM-339 BOARD
TO AM-338 BOARD
SYNCHRONOUS
COMMUNICATION
PORT
DEBUG / TRACE PORT
MAC555
9-Pin Connector: 2 - RXD (not used)
3 - TXD
4 - CTS
5 - RTS (not used)
6 - DTR (not used)
7 - GND
8 - DCD (not used)
25-Pin Connector: 2 - TXD (DTE mode) RXD (DCE mode)
3 - RXD (DTE mode) TXD (DCE mode)
4 - RTS (DTE mode) CTS (DCE mode)
5 - CTS (DTE mode) RTS (DCE mode)
6 - DTR (DCE mode)
7 - GND
8 - DCD
15 - TXC (transmit clock) - input
17 - RXC (receive clock) - input
20 - DTR (DTE mode)
AM-339 I/O
PINOUTS
25-pin 9-pin
DCE (TEST MODE)
W1
NOTE:
Test Mode is used for loopback diagnostics. An internal clock is
generated so no external modem is required. Test Mode cannot be
used for linking two RJE boards - An external modem must be used
for that purpose.
Figure 1. AM-338/AM-339 RJE Board Set
4.0AM-1600 AM-338/339 INSTALLATION
The AM-338 board occupies one I/O expansion connector on the AM-1600’s CPU
board, the AM-135. Depending on the configuration of your computer, the AM-338 will
be installed in the AM-135 board’s J14 or J15 I/O expansion connector. If you have an
AM-366 Ethernet controller installed in your computer, the AM-338 board must be
installed in J15. For installations without an AM-366 board, the AM-338 board will be
installed in J14.
PDI-00338-00, Rev. A02