Specifications
Watson TDM
Operating Manual
Watson-TDM-Manual-W.doc
Version 2.0-01
9-36
Revision: 2008-02-07
9.3 E1 Connectors
9.3.1 120 Ohm Connectors on Plug-in
2 x E1, 120 Ohm
Type: SubD15 male (Front View)
18
915
Pin Signal Description
1 RX1a
E1 120Ω Output 1 (wire A)
2 GND-RX1 Ground (cable shield RX1)
3 TX1a
E1 120Ω Input 1 (wire A)
4 GND-TX1 Ground (cable shield TX1)
5 GND-RX2 Ground (cable shield RX2)
6 RX2a
E1 120Ω Output 2 (wire A)
7 GND-TX2 Ground (cable shield TX2)
8 TX2a
E1 120Ω Input 2 (wire A)
9 RX1b
E1 120Ω Output 1 (wire B)
10 - Not Connected
11 TX1b
E1 120Ω Input 1 (wire B)
12 - Not Connected
13 RX2b
E1 120Ω Output 2 (wire B)
14 - Not Connected
15 TX2b
E1 120Ω Input 2 (wire B)
Notes • On multiservice plug-ins with only E1 port 1 is available
• Plug-ins with 4 x E1 have two connectors carrying E1 ports 1/2 and 3/4
respectively