Product Manual - DM991 Series V Family - 204.4092.08
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4.
V.35-V36/V.11 DIGITAL INTERFACE
The DB25 connector follows the ISO2110 Amd. 1 recommended pinout, for the V.35 interface as well as
for the V.36/V.11.
In the DM991S/SE modems, that pinout can be altered to the Telebrás standard through the straps.
Interface V.35
In the case of DM991S/SE modems, that pinning can be changed to the Telebrás standard through
straps.
In the case of DM991C/CE modems, you have the option of asking for equipment with a pinning
selections between ISO2110 Amd.1 and Telebrás standard through straps.
Data and clock signals are the differential balanced type, according to ITU-T’s V.11 recommendation.
Signals CT107, CT108, CT109, CT140, CT141 and CT142 follow the characteristics of recommendation
V.28 (compatible with recommendation V.10). Control signals CT105 and CT106 can be configured by
straps to follow the characteristics of recommendation V.28 (for V.35) or V.11 (for V.36/V.11).
The ETD can provide synchronism for data receiving through CT128.
The digital interface can be set up in rates from Nx64kbit/s to 2,304kbit/s on 2-wire modems (2W), and up
to 4,608kbit/s on 4-wire modems (4W).
Summary of Contents for DM991C
Page 1: ...DM991 SERIES V DM991C DM991CE DM991S DM991SE PRODUCT MANUAL 204 4092 08 rev 08 Date 8 12 2008 ...
Page 66: ...Product Manual DM991 Series V Family 204 4092 08 66 Figure 31 LDL Test Converter Mode ...
Page 89: ...Phone 55 51 3358 0100 Support 55 51 3358 0122 Fax 55 51 3358 0101 www datacom ind br ...
