Hitachi GR2000 manual Sync clock -clock

4.5.3.1Required Setting on GR2000 for POS in Multivendor Environment

When you connect GR2000 with other vendor’s router on POS interface, set up the configuration definition on GR2000 according to Table 4-79.

Table 4-79 Configuration Definition on GR2000 for POS in Multivendor Environment

Definition Item	Selectable Options	Required Setting
(Parameter)	(Default Underlined)
Sync clock (-clock)	independent external	To connect to the network requiring synchronization,
		alter the setting from independent to external.
		Avoid clock closed loops. Refer to (2) below.
CRC (-crc)	16 32	Make the setting identical between GR2000 and the
		other device. The default of GR2000 (16) is preferred; if
		the other device does not support it, alter the setting on
		GR2000 to 32.
scramble	-scramble_off	Make the setting identical between GR2000 and the
(-scramble_off	-scramble	other device. The default of GR2000 (-scramble_off) is
-scramble)		preferred; if the other device does not support it, alter
		the setting on GR2000 to -scramble.

Do not set this device and the opposing device simultaneously in network