Quantum and Evolution Series Installation and Operating Handbook
10-17
P3713 Adapter Cable
Where compatibility with existing P300 wiring is required an adapter cable can be
supplied.
1. Simple IDC D-type plug to plug with connector reversed (pin 1 to 13)
2. Custom cable with additional ground pins at Eurocom side with select pins not
connected.
Quad E1 Interface
The P3706 Quad E1 interface card provides 4 RJ45 connectors supporting balanced E1
G.703. The Quad E1 interface panel supports four full E1s, four partial E1s or a mix of
both. Unbalanced G.703 can be provided by an external adaptor. If the Quad E1
interface is selected under
Edit/Unit/Interface/Terrestrial
then the following interface
description applies. Please note this is per port.
Min
Req
Signal Description
RJ45
Electrical
Levels
A B
DATA CIRCUIT TOWARDS MODEM (TX)
9
Data In
1 2
G.703
DATA CIRCUIT FROM MODEM (RX)
9
Data Out
4 5
G.703
Line code is fixed as HDB3 for all ports. The master clock source, for all ports is the
lowest active port number that is configured and connected. For example, if port one is
being used then this provides the clock source for all other ports. Therefore, as far as the
clock configuration is concerned, all other ports are described as slaves. The slaved ports
require a bearer to be generated from the modem. Alternatively, timing may be
distributed to the terrestrial equipment/modem from a single master clock source. If
clocking topology is not considered prior to implementing a Quad E1 system then
clocking problems may result.
Note: Quad E1 requires an IB/SMS service to be selected and if multiple E1s are to be
used then additional SAF codes may have to be purchased. (2E1, 3E1 and 4E1)
