HCT-SDH-155 Manual

Figure 2-14 Physical Interface Setup2.2.2. Receiving GainThe instrument supports receiving gain at two levels including 0dB and 18dB. See Figure 2-15as follows:Figure 2-15 Receiving Gain Setup2.2.3. MappingThe mapping and de-mapping modes: E1 (unframed, CCS, CCS/CRC, CAS & CAS/CRC), E3(unframed/frame), E4 (unframed/frame), C-12 (KLM optional), C-3 (TUG3 optional), C-4. Receivingand transmission can be set up separately- “RX≠TX”. Moreover, a coupling mode can be set up-“RX=TX”. See Figure 2-16 as follows:13