Nortel Networks NN43001-301 - Manual (Page 188)

188 ISL installation
• Modem/Network, Modem
• Auto Answer, On
• Loopback, Off
Note 1: Set only one side of the interface to originate the hot line.
Note 2: Forced Data Terminal Ready (DTR) automatically reinitiates a
dropped hot line call.
QMT8 switch settings
If the QMT8 Asynchronous Data Module (ADM) is used, set the switches as
follows:
Switch 1: Switch 3: Switch 4:
set to zeros (no VFDN)
1. not used
2. not used
3. FDX (full duplex)
4. modem
5. internal clock
6. no echo
7. auto answer
8. off (no loopback)
1. on
2. on (hot line*)
3. off (DTR-data
terminal
ready-required)
4. on (synchronous)
U5 and U7 must be
jumpered
* Only one side of the
interface should be set to
originate the hot line.
QMT21C switch settings
If using the QMT21 HSDM, set the dip switches, located on top of the unit
under the flip-up, as follows.
• Hotline, On; See Note 1.
• Forced DTR, On; See Note 2.
• FDX (full duplex), On
• SYNC, On
• INTernal CLK, On
• Modem/Network, Modem
• Auto Answer, On
• Loopback, Off
Note 1: Set only one side of the interface to originate the hot line.
Nortel Communication Server 1000
ISDN Primary Rate Interface Installation and Commissioning
NN43001-301 02.03 Standard
Release 5.5 7 December 2007
Copyright © 2003-2007, Nortel Networks
.