Package Contents
The following items are included with each Port Interface Card (PIC). Contact your authorised Allied Telesis distributor or reseller if any items are damaged or missing.
■two spring-loaded retaining thumbscrews
■two jumpers (AT-AR020 PRI E1/TI and AT-AR021(S) BRI-S/T only).
■this Installation and Safety Guide
■one warranty card
Choosing a PIC Bay
Observe the following guidelines when selecting a PIC bay:
■Use the PIC bays on the switch or router base unit first, before installing PICs into an AT-AR040 NSM.
■Fill the PIC bays in an AT-AR040 NSM starting at bay 0.
■You can install a maximum of two AT-AR020 PRI E1/T1 PICs into an AT-AR040 NSM, and maximum of four total in a switch or router.
■If two AT-AR020 PICs are installed in an AT-AR040 NSM, PIC one must be installed in the lower row (bay 0 or 1) and the other PIC must be installed in the upper row (bay 2 or 3).
■If an AT-AR020 PIC is installed in an AT-AR040 NSM, and operating in E1 mode, you can not install an AT-AR021(S) or AT-AR021(U) PIC in the same row of the NSM.
■You can install a maximum of four AT-AR027 PICs in an AR745 router fitted with an AT-AR040 NSM.
■Avoid installing an AT-AR022 or AT-AR026 PIC in an AT-AR040 NSM. Performance of these interfaces may be reduced and packet loss may occur.
For instructions on installing an AT-AR040 NSM into your switch or router, see the Network Service Module Installation and Safety Guide supplied with the NSM. You can also download this document from www.alliedtelesis.com/support/software.
