Allied Telesis Port Interface Card - Manual (Page 5)

Quick Install Guide 5
C613-04020-00 REV D
8. If the PIC has jumpers, check that they are correctly set.
The AT-AR020 PRI E1/T1 and AT-AR021(S) BRI-S/T are the only PICs with
user-configurable jumpers. Check that all jumpers and other hardware
configurations are set correctly on the new PIC (Table 1 and Table 2).
Earlier versions of the AT-AT020 PIC also have a J3 interface jumper. If present, this
jumper must be installed for E1 mode and removed for T1 mode.
For more information on PIC jumpers and hardware configurations, see
the Port Interface Card Hardware Reference. This Reference can be found on
the CD-ROM bundled with recently purchased switches or routers, or can
be downloaded from www.alliedtelesyn.co.nz/support/support.html.
Do not attempt to change any jumpers, DIP switches or other hardware
configurations while the switch or router is connected to a power supply,
redundant power supply, or a ‘live’ network. Dangerous voltages may be
present on some parts of the board, even if the switch or router is not turned on.
9. Slide the PIC into place.
PIC bays should be filled in numerical order, starting with the lowest
available bay (e.g., bay 0) followed by bays with progressively higher
numbers.
10. Secure the PIC by tightening its thumb screws.
11. Apply power to the switch or router by re-attaching the power cord.
12. If you disconnected a redundant power supply, reconnect it.
13. Test the PIC.
There are several ways to check that the PIC is installed and functioning
correctly.
The SHOW SYSTEM command displays general system information about
PICs and any other hardware installed, as well as memory, software release
and patches loaded on the switch or router.
See the Port Interface Card Hardware Reference for detailed information on
PIC testing.
Table 1: Functions of jumpers on the AT-AR020 PRI E1/T1 PIC board.
Jumper Function Default
J1 Selects ISDN NT mode (installed, test only) or TE mode (not
installed). Not installed.
J2 Selects T1 mode (installed) or E1 mode (not installed). Not installed.
Table 2: Functions of jumpers on the AT-AR021(S) BRI-S/T PIC board.
Jumper Function
J1 100 Ω termination for TX.
J2 100 Ω termination for RX.