Nortel 1000 Installation And Commissioning Manual page 188

188 ISL installation
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QMT8 switch settings
If the QMT8 Asynchronous Data Module (ADM) is used, set the switches as
follows:
Switch 1:
set to zeros (no VFDN)
QMT21C switch settings
If using the QMT21 HSDM, set the dip switches, located on top of the unit
under the flip-up, as follows.
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Copyright © 2003-2007, Nortel Networks
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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.
Switch 3:
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)
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
Switch 4:
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.