Specifications

Hardware Reference 7
C613-03023-00 REV P
Figure 2: Location of jumpers on the AT-AR020 PRI E1/T1 PIC board
Warning Do not attempt to install or remove the PIC, or change any jumpers on
the PIC, while the switch or router is connected to a power supply or a live
network. Disconnect the mains power supply, any redundant power supply, and
any cable attached to the WAN port of the PIC. Dangerous voltages may be
present on some parts of the PIC board, even if the switch or router is powered off.
Table 3: Functions of jumpers on the AT-AR020 PRI E1/T1 PIC board
Jumper Function Default
J1 Selects ISDN NT mode (installed) or TE mode (not installed). Not installed.
J2 Selects T1 mode (installed) or E1 mode (not installed). Installed.
J3 Selects E1 mode (installed) or T1 mode (not installed).
Only present on earlier versions of the PIC.
-
AR020C
S/N
PIC CONNECTOR
LED
D Data
B Data
LED
Active
NT
RJ45
J2 (E1/T1)
J1 (NT/TE)
PRI