Wiring - ADTRAN DUAL Nx56/64 1200142L1# User Manual

Chapter 2. Installation

Wiring

2-4
The connection of the header pins between the option module and the
plug-on board must be visually verified. An improper connection can
cause severe damage to the equipment.
The Dual Nx56/64 option module has two 26-pin sub-
miniature D connectors. Each connector is pinned out as
shown in Table 2-1.
PIN
1 Protective ground (PG)
4 Request to send (RTS) from DTE
5 Clear to send (CTS) to DTE
6 Data set ready (DSR) to DTE
7 Signal ground (SG)
8 Received line signal detector (DCD) to DTE
9 Transmitted data (TD-A) to DTE
10 Transmitted data (TD-B) to DTE
11 Received data (RD-A) to DTE
12 Received data (RD-B) to DTE
13 External TX clock (ETC-A) from DTE
19 Test mode (TM) to DTE
22 TX clock (TC-A) to DTE
23 TX clock (TC-B) to DTE
24 RX clock (RC-A) to DTE
25 RX clock (RC-B) to DTE
26 External TX clock (ETC-B) from DTE
Dual Nx56/64 Option Module User Manual
Table 2-1. Subminiature D Connection
DESCRIPTION
61200142L1-1