Nortel 1000 Installation And Commissioning Manual page 82

82 DCH installation
Jumper settings
The NT6D11AB/AE/AF has two banks of option straps, one for each port.
These select between DCE and DTE operation and whether the signalling
interface is RS232 or RS422. Refer to
ISL high-speed programming jumper settings" (page 82)
"NT6D11 DCH with ISL low-speed programming jumper settings" (page
Figure 36
NT6D11 DCH with ISL high-speed programming jumper settings
Copyright © 2003-2007, Nortel Networks
.
Nortel Communication Server 1000
ISDN Primary Rate Interface Installation and Commissioning
NN43001-301 02.03 Standard
Release 5.5 7 December 2007
Figure 36 "NT6D11 DCH with
and Figure 37
83).