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180001UA
CHAPTER 2 - SETUP AND INSTALLATION
Installation
Set the switches to match the required configurations based on the
diagrams below. The cabling between each device and the interface
converter must be terminated with male connectors. J1 is the V.35
interface, J2 is the X.21 interface and J3 is the V.24 low speed asynchro-
nous interface. The 4 position terminal block is for the G.703 line connec-
tion. The IEC connector is provided to interface to the power plug re-
quired in the country of use. Insure the 110/220VAC switch is set cor-
rectly for the line voltage in use prior to applying power to the interface
converter.
Selection of DTE/DCE
To connect a terminal type device (DTE) to the 2072 (CTS IC-G.703),
connect the Terminal to J1 or J2 and move SW1, SW2, and SW3 to the
rear of the unit toward the connectors (DCE position).
To connect a Modem type device (DCE) to the 2072 (CTS IC-G.703),
connect the Modem to J1 or J2 and move SW1, SW2, and SW3 to the
front of the unit away from the connectors (DTE position).
Equipment Grounding
JP7 provides grounding interconnection in those systems requiring a
connection between Frame Ground and Signal Ground. If signal ground
and chassis ground interconnection is desired, install the jumper on JP7.
LED Indicators
The Following LED indicators are provided for diagnostics: Power (PW),
Transmit Data (TD), Receive Data (RD), Loss of Signal (LOS), Digital
Loopback (DL), Analog Loopback (AL), Test (TST), Remote Loopback
(RLB), Error (ERR) and Sync (SYN).
Front Panel Loop Back Buttons
The Digital Loop and Analog Loop buttons are provided to enable and
disable the testing and loopback features.
2-1
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