Verilink PRISM 41TDM (34-00275.4) Product Manual - Manual (Page 21)

Port Connections 13
DBU The Dial Backup port is a 6-pin
modular connector that supplies the
connection to the switched network
when the internal Dial Backup option
is installed. The device can be
configured through AT commands
configured in the DBU screen of the
terminal interface on (Section 4.5.7,
page 4-12). The pinout is shown in
Table 2-3. Interface cables can be
ordered from Verilink Customer
Service (page 67).
NET The DDS network is connected
through a standard RJ-48S (8-pin
modular) connector labeled NET. The
pinout is shown in Table 2-4.
In accordance with FCC Rules, Part 68.218(b), notify the telephone company before
disconnecting this product.
The network side of the PRISM 41TDM is referred to as the network interface.
This interface contains an ALBO (automatic line build-out) allowing the unit to be
located a substantial distance away from the telco network interface with a receive
signal level down to -45 dB.
Table 2-3 DBU Pinout Assignments
Pin
Dial Backup
Connection Modem
Pinout
1 N/C
2 N/C
3 ISDN U-Interface Tip
4 ISDN U-Interface Ring
5 N/C
6 N/C
Table 2-4 RJ-48S Pinout Assignments
Pin NET Interface
1 Data Out (Tip)
2 Data Out (Ring)
3 Not Used
4 Not Used
5 Not Used
6 Not Used
7 Data In (Tip)
8 Data In (Ring)