Figure 75: E1/X.21 And Ethernet Site Link Connectors On The Mts 2 Junction Panel; Figure 76: E1/X.21 And Ethernet Site Link Connectors On The Mts 4 Junction Panel; Figure 77: Site Link Connector E1 Pinout; Table 24: Site Link Connector E1 On Junction Panel - Motorola MTS LiTE Installation, Configuration And Basic Service Manual

Figure 75: E1/X.21 and Ethernet Site Link Connectors on the MTS 2 Junction Panel

Figure 76: E1/X.21 and Ethernet Site Link Connectors on the MTS 4 Junction Panel

NOTICE:
The network termination unit (NTU) in the same building shall provide the necessary isolation
between the X.21/E1 interface and the network, and should be approved for use by the
appropriate agency in the end user country.
Do not remove the supplied caplug and retaining bag from the D-type connector of the X.21 or
E1 cable.
A surge arrestor should be used. For full instructions and guidelines, please refer always to
Motorola Standards and Guidelines for Communications Sites, R56.
Table 24: Site Link Connector E1 on Junction Panel on page 133
X.21 on Junction Panel on page 134
The E1 connector described in
contains two E1 lines. If only one line is needed, use Receive 1 and Transmit 1. Be aware that the Pin
definitions on the Site Controller are different from the E1 connector on the Junction Panel.

Figure 77: Site Link Connector E1 Pinout

Table 24: Site Link Connector E1 on Junction Panel

Pin No. Function
1 Receive 1 positive
2 Receive 1 negative
3 Receive 2 positive
4 Transmit 1 positive
5 Transmit 1 negative
6 Receive 2 negative
7 Transmit 2 positive
8 Transmit 2 negative
X.21
X.21
show the pin assignment for E1 and X.21 connection.
Table 24: Site Link Connector E1 on Junction Panel on page 133
Chapter 4: Hardware Installation
Ethernet Site Links
E1
E1 Ethernet Site Link
and Table 25: Site Link Connector
6802800U74-AN
133