Product Manual - DM991 Series V Family - 204.4092.08
26
Function
Signal
DB25
Signal Source
Received data
OUT core
21
DM991
Received data
OUT shield
14
DM991
Transmitted data
IN core
18
E1 Network
Transmitted data
IN shield
25
E1 Network
Table 14. DM991S/SE - G.703 Proprietary Pinout (DB25)
5.2. DM991C/CE
There are straps that allow you to connect the external coaxial cable network to the ground. On models
DM991C/CE with PCI rev. 04 or higher, this applies both to the input channel (RX-IN) and to the output
channel (TX-OUT). On models DM991C/CE with PCI rev. 03 or lower, this applies only to the input
channel (RX-IN); in this case, the external output coaxial cable network (TX-OUT) is always connected to
the ground.
The G.703 signal output is available on the BNC OUT connector or between the pins 4 and 5 of the RJ48.
The G.703 signal input is available on the BNC IN connector or between the pins 1 and 2 of the RJ48
Function
Signal
RJ45 Signal Source
Received data
OUT
4
DM991
Received data
OUT
5
DM991
Transmitted data
IN
1
E1 Network
Transmitted data
IN
2
E1 Network
Table 15. DM991C/CE - G.703 RJ48 Pinout
Be careful as not to let those straps be in the grounded position when a 120-ohm twisted pair is used on
the RJ48.
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 ...
