VS1 Installation, Configuration & Operating Guide 45
Installing the CTIM
The Computer Telephony Interface Module (CTIM) provides a digital interface to the VS1 phone
system for the Telecor Attendant and Connect applications. The CTIM is an external device with a
headset jack intended for use only with the VS1 phone system. To install the CTIM, complete the
following steps:
1. Close all applications, and then turn off the computer.
2. Connect the female end of a 9-pin serial port cable to an available 9-pin male COM port on the
computer you want to use with the CTIM.
Note If you computer has an available 25-pin COM port, obtain a 25-to-9-pin serial port adapter
and connect that to the 25-pin COM port on the computer.
3. Connect the male end of the 9-pin serial cable to the DB9 female connector on the CTIM.
Note If you are installing the CTIM for use with Telecor Attendant, the DB9 connector on the
CTIM is not used.
4. Connect a four-conductor RJ-11 patch cord from the wall jack to the RJ-11 jack labeled “Line”
on the CTIM.
5. Connect a headset to the RJ-22 jack labeled “Headset” on the CTIM.
6. Set the Ear, Mic and Sidetone volume control jumper settings on the CTIM for the headset or
handset you use. The table below shows the volume settings for Ear and Mic.
7. Set the Sidetone to Hi or Lo, according to user preference. The Sidetone is set to Low by
default.
8. The CTIM installation is complete. Turn the computer on.
CTIM
Computer Telephony Interface Module
Volume settings for
Ear and Mic
Volume E2/M2 E1/M1 E0/M0
1(LO) off off off
2offoffon
3 off on off
4 off on on
5onoffoff
6onoffon
7 ononoff
8 (HI) on on on
CTIM Checklist
Turn off the computer
Locate an available external 9-pin male COM port on the computer, and connect the
female end of a serial cable to it.
Connect the male end of the serial cable to the female connector on the CTIM.
Connect an RJ-11 cord from the wall jack to the “Line” jack on the CTIM. Connect a
headset to the RJ-22 “Headset” jack on the CTIM.
Set the Ear, Mic, and Sidetone volume control jumper settings on the CTIM.
Turn the computer on.
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