COMSPHERE 3600 Series Data Service Units
3-6
July 1999
3610-A2-GB91-90
Press the latch to secure the DSU in the carrier to
prevent the DSU from being dislodged during
installation of the DTE interfaces. Rotate the
circuit pack lock back into the closed position
(
Figure 3-3
) and tighten the screw.
3. Refer to the
Power-up Routine
section of this
chapter.
4. Connect the line side of the network interface
module on the carrier to the dial network circuit
termination assigned to this DBM. Refer to
Appendix F
for pin assignments.
Note that under each slot on the front of the
carrier, next to the slot number, there is a
writable/erasable surface for circuit labeling
purposes. If the DBM is installed, you may wish
to write its telephone number here as well.
5. The rear of each Model 3611 circuit card has an
EIA-232-D/V.24 (ISO 2110) 25-pin connector for
operation at rates up to and including 19.2 kbps,
and a ITU-T V.35 (ISO 2593) 34-pin connector for
operation at all available rates (Figure 3-4). Each
DSU can be configured to use either interface
independently of the other circuit cards in the
carrier. Connection of the DSU to the DTE is a
matter of attaching the DTE vendor-provided
cable to the DSU.
To install the DTE, refer to the
DSU DTE Connection
section for non-modular DSUs.
NOTE
For the V.35 connector, the
recommended maximum distance
between a DTE and DSU is
nominally 1000 feet.
For the EIA-232 connector, the
effective shunt capacitance of the
circuit, measured at the DSU,
including the capacitance of the
cable and the DTE, must not
exceed 2500 picofarads, as
specified in EIA-232-D.
Figure 3-4. COMSPHERE 3000 Series Carrier, Rear View
Summary of Contents for COMSPHERE 3610
Page 4: ...COMSPHERE 3600 Series Data Service Units C July 1999 3610 A2 GB91 90 Notices...
Page 16: ...COMSPHERE 3600 Series Data Service Units x July 1999 3610 A2 GB91 90...
Page 27: ...Introduction 1 11 3610 A2 GB91 90 July 1999 Figure 1 4 NMS Interfaces to the SDU 1 of 2...
Page 128: ...COMSPHERE 3600 Series Data Service Units 5 6 July 1999 3610 A2 GB91 90...
Page 186: ...COMSPHERE 3600 Series Data Service Units 6 58 July 1999 3610 A2 GB91 90...
Page 187: ...A 1 3610 A2 GB91 90 July 1999 Data Service Unit Menu A...
Page 188: ...COMSPHERE 3600 Series Data Service Units A 2 July 1999 3610 A2 GB91 90...
Page 189: ...Data Service Unit Menu A 3 3610 A2 GB91 90 July 1999...
Page 190: ...COMSPHERE 3600 Series Data Service Units A 4 July 1999 3610 A2 GB91 90...
Page 224: ...COMSPHERE 3600 Series Data Service Units C 22 July 1999 3610 A2 GB91 90...
Page 259: ...Pin Assignments F 11 3610 A2 GB91 90 July 1999 Figure F 8 EIA 232 D Crossover Cable 4951 035F...
Page 272: ...COMSPHERE 3600 Series Data Service Units H 6 July 1999 3610 A2 GB91 90...
Page 278: ...COMSPHERE 3600 Series Data Service Units I 6 July 1999 3610 A2 GB91 90...
Page 280: ...COMSPHERE 3600 Series Data Service Units J 2 July 1999 3610 A2 GB91 90...
Page 292: ...COMSPHERE 3600 Series Data Service Units L 10 July 1999 3610 A2 GB91 90...
