ADTRAN 1200275L1, User Manual

Page: 43 / 198

Chapter 2. Installation
61200275L1-1 TSU IQ+ User Manual 2-5
DSX-1 Port
The
DSX-1
interface provides a short haul T1 connection to a PBX or
other customer premise equipment (CPE). This port complies with
ANSI T1.102.
Control Port
The TSU IQ+ has an 8-pin modular jack labeled
CONTROL
. The
Control port provides connection to a VT-100 EIA-232 compatible
interface, a device running SLIP protocol, or a device running
Async PPP protocol. An 8-foot cable with adapter connector
provides a standard DB-25 EIA-232 interface. See Pinouts on page
A-1 for the Control port’s pin assignments. Chapter 3, Operation
describes this port’s operation.
V.35 Connector
The DTE should be connected to the V.35 connector (labeled
V.35
Nx56/64
). The maximum cable length is 100 feet. The pin
assignments for this connector are listed in Pinouts on page A-1.
To prevent possible radio frequency interference emissions, a shielded ca-
ble is required.