User Manual

MDR2400 and MDR5800 User Manual
862-01881 Issue 8 Page 30
4.2.4 Balanced Payload Data
1. Assemble the (nE1) / (nT1) payload data input and output cable. See the table
below for Indoor Unit connector pin assignments.
2. Connect the payload data cable to the DB25 connector on the front panel of the
Indoor Unit.
Note: Rx implies IN (signal expected to go INTO the interface), Tx implies OUT (signal
coming out of the interface)
D-Type
Payload Data
Connector
Pin #
Pin Name Tributary Direction
1 GND Earth N/A
2 RTIP1 1 RX +
3 RRING1 1 RX -
4 GND Earth N/A
5 TTIP1 1 TX -
6 TRING1 1 TX +
7 GND Earth N/A
8 GND Earth N/A
9 RRING0 0 RX +
10 RTIP0 0 RX -
11 GND Earth N/A
12 TRING0 0 TX -
13 TTIP0 0 TX +
14 TRING2 2 TX -
15 TTIP2 2 TX +
16 GND Earth N/A
17 RRING2 2 RX+
18 RTIP2 2 RX-
19 GND Earth N/A
20 TTIP3 3 TX-
21 TRING3 3 TX+
22 GND Earth N/A
23 RTIP3 3 RX+
24 RRING3 3 RX-
25 GND Earth N/A