
Page 166 of 188
ISL installation for all systems
553-2901-200 Standard 11.00 August 1996
QMT21C switch settings
—If using the QMT21 HSDM, set the dip
switches, located on top of the unit under the flip-up, as follows.
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.
ISL installation
The following procedures explain the installation for ISL in both dedicated
and shared modes.
Modem paths must have individual configurations such as route data blocks,
trunks, and routes.
— 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